1 LOST ON A HILLTOP 1
2 AT THE LISTENING POST 11
3 AN UNPLEASANT DRIVER 20
4 STOLEN TIRES 26
5 AN IMPORTANT INTERVIEW 35
6 FRONT PAGE NEWS 43
7 QUESTIONS WITHOUT ANSWERS 52
8 A FEW CHANGES 58
9 AN OPEN SAFE 68
10 TALE OF A GHOST 75
11 BY A CEMETERY WALL 85
12 FLIGHT 91
13 A BLACK MARKET 100
14 A FAMILIAR FIGURE 107
15 GHOST IN THE GARDEN 117
16 A DOOR IN A BOX 125
17 ADVENTURE BY MOONLIGHT 134
18 THROUGH THE CELLAR WINDOW 142
19 A BAFFLING SEARCH 151
20 ACCUSATIONS 157
21 MRS. BOTTS' REVELATION 166
22 A PARK BENCH 173
23 FORGOTTEN EVENTS 180
24 TRICKERY 190
25 FINAL EDITION 203
The little iceboat, with two laughing, shouting girls clinging to it, sped over the frozen surface of Big Bear River.
"Penny, we're going too fast!" screamed Louise Sidell, ducking to protect her face from the biting wind.
"Only about forty an hour!" shrieked her companion gleefully.
At the tiller of the Icicle, Penelope Parker, in fur-lined parka, sheepskin coat and goggles, looked for all the world like a jolly Eskimo. Always delighting in a new sport, she had built the iceboat herself-spars from a wood lot, the sail from an old tent.
"Slow down, Penny!" pleaded her chum.
"Can't," shouted Penny cheerfully. "Oh, we're going into a hike!"
As one runner raised off the ice, the boat tilted far over on its side. Louise shrieked with terror, and held tight to prevent being thrown out. Penny, hard pressed, sought to avert disaster by a snappy starting of the main sheet.
For a space the boat rushed on, runners roaring. Then as a sudden puff of wind struck the sail, the steering runner leaped off the ice. Instantly the Icicle went into a spin from which Penny could not straighten it.
"We're going over!" screamed Louise, scrambling to free her feet.
The next moment the boat capsized. Both girls went sliding on their backs across the ice. Penny landed in a snowdrift at the river bank, her parka awry, goggles hanging on one ear.
"Are you hurt, Lou?" she called, jumping to her feet.
Louise sprawled on the ice some distance away. Slowly she pulled herself to a sitting position and rubbed the back of her head.
"Maybe this is your idea of fun!" she complained. "As for me, give me bronco busting! It would be a mild sport in comparison."
Penny chuckled, dusting snow from her clothing. "Why, this is fun, Lou. We have to expect these little upsets while we're learning."
The sail of the overturned iceboat was billowing like a parachute. Slipping and sliding, Penny ran to pull it in.
"Take the old thing down!" urged Louise, hobbling after her. "I've had enough ice-boating for this afternoon!"
"Oh, just one more turn down the river and back," coaxed Penny.
"No! We're close to the club house now. If we sail off again, there's no telling where we'll land. Anyway, it's late and it's starting to snow."
Penny reluctantly acknowledged that Louise spoke pearls of wisdom. Large, damp snowflakes were drifting down, dotting her red mittens. The wind steadily was stiffening, and cold penetrated her sheepskin coat.
"It will be dark within an hour," added Louise. Uneasily she scanned the leaden sky. "We've been out here all afternoon."
"Guess it is time to go home," admitted Penny. "Oh, well, it won't take us long to get the Icicle loaded onto the car trailer. Lucky we upset so close to the club house."
Setting to work with a will, the girls took down the flapping sail. After much tugging and pushing, they righted the boat and pulled it toward the Riverview Yacht Club. Closed for the winter, the building looked cold and forlorn. Penny, however, had left her car in the snowy parking lot, which was convenient to the river.
"Wish we could get warm somewhere," Louise said, shivering. "It must be ten below zero."
Pulling the Icicle behind them, the girls climbed the slippery river bank. Snow now swirled in clouds, half-curtaining the club house.
"I'll get the car and drive it down here," Penny offered, starting toward the parking lot. "No use dragging the boat any farther."
Abandoning the Icicle, Louise went with her chum. A dozen steps took the girls to a wind-swept corner of the deserted building. Rounding it, they both stopped short, staring.
On the snow-banked parking lot where the car had been left, there now stood only one vehicle, an unpainted, two-wheel trailer.
"Great fishes!" exclaimed Penny. "Where's the coupe?"
"Maybe you forgot to set the brake and it rolled into a ditch!"
"In that case, the trailer would have gone with it." Her face grim, Penny ran on toward the parking lot.
Reaching the trailer, the girls saw by tire tracks in the snow that the car had been detached and driven away.
"I knew it! I knew it!" Penny wailed, pounding her mittens together. "The coupe's been stolen!"
"What's that across the road?" Louise demanded. "It looks like an automobile to me. In the ditch, too!"
Taking new hope, Penny went to investigate the little ravine. Through a screen of bare tree branches and bushes, she glimpsed a blur of metal.
"It's the car!" she cried jubilantly. "But how did it get across the road?"
Penny's elation quickly died. Drawing nearer, she was dismayed to see that the coupe appeared to be lying on its stomach in the ditch. Four wheels and a spare had been removed.
"Stripped of every tire!" she exclaimed. "The thief ran the car out here on the road so we couldn't see him at work from the river!"
"What are we going to do?" Louise asked weakly. "We're miles from Riverview. No houses close by. We're half frozen and night is coming on."
Penny, her face very long, had no answer. She measured the gasoline tank with a stick. All of the fuel had been siphoned. She lifted the hood, expecting to find vital parts of the engine missing. However, everything appeared to be in place.
Seeking protection from the penetrating wind, the girls climbed into the car to discuss their situation.
"Can't we just wait here until someone comes along and gives us a lift to town?" suggested Louise.
"Yes, but we're on a side road and few cars travel this way during winter."
"Then why not go somewhere and telephone?"
"The nearest stores are at Kamm's corner, about two miles away."
Louise gazed thoughtfully at the soft snow which was banking deeper on the windshield of the car.
"Two miles in this, facing the wind, will be a hard hike. Think we ought to try it, Penny?"
"I'm sure I don't want to. And we needn't either! Do you remember Salt Sommers?"
"The photographer who works on your father's newspaper?"
"Yes, he spends his spare time as an airplane spotter. His station is over in the hills not more than a half mile from here! Why not tramp over there and ask him to telephone our folks?"
"Are you sure you know the way?"
"I was there once last summer," Penny said confidently. "One follows a side road through the woods. I'm sure I can find it."
"All right," Louise consented, sliding from behind the steering wheel. "If we're going, let's move right along."
Stiff with cold, the girls trudged past the club house and on down the road. Snow was falling faster and faster. Several times they paused to wipe their frosted goggles.
"This promises to be a man-sized blizzard," Louise observed uneasily. "It's getting dark early, too."
Penny nodded, her thoughts on what she would say to her father when she reached home. The car had been fully insured, but even so it would not be easy to replace five stolen tires. Ruefully she reflected that Mrs. Weems, the kindly housekeeper who had looked after her since her mother's death, had not favored the river trip.
"Oh, don't take it so hard," Louise tried to cheer her. "Maybe the thief will be caught."
"Not a chance of it," Penny responded gloomily.
A hundred yards farther on the girls came to another side road which wound upward through the wooded hills. Already there was an ominous dusk settling over the valley. Penny paused to take bearings.
"I think this is the way," she said doubtfully.
"You think!"
"Well, I'm pretty sure," Penny amended. "Salt's station is up there on top of one of those hills. If this snow would stop we should be able to see the tower from here."
Slightly reassured, Louise followed her chum across a wooden bridge and up a narrow, winding road. On either side of the frozen ditches, tall frosted evergreens provided friendly protection from the stabbing, icy wind. Nevertheless, walking was not easy for the roadbed bore a shell of treacherous ice.
Confident that they soon would come to the airplane listening post, the girls trudged on. Penny, anxious to make the most of the remaining daylight, set a stiff pace.
"Shouldn't we be coming to the station?" Louise presently asked. "Surely we've gone more than a half mile."
"The post is a little ways off from the road," Penny confessed, peering anxiously at the unbroken line of evergreens. "We should be able to see it."
"In this blinding snow? Why, we may have passed the station without knowing it."
"Well, I don't think so."
"You're not one bit sure, Penny Parker!" Louise accused. "We were crazy to start off without being certain of the post's location."
"We always can go back to the car."
"I'm nearly frozen now," Louise complained, slapping her mittens together. "There's no feeling in one of my hands."
Penny paused to wipe the moisture from her goggles. From far down the road came the sound of a laboring motor. She listened hopefully.
"A car, Lou!" she cried. "Everything will be all right now! We'll hail it and ask the driver for a lift."
Greatly encouraged, the girls waited for the approaching vehicle. They could hear it climbing a steep knoll, then descending. From the sound of the engine they decided that it must be a truck and that it might round the curve at a fast speed.
Worried lest the driver fail to see them, the girls stepped out into the middle of the road. As the truck swerved around the bend, they shouted and waved their arms.
The startled driver slammed on brakes, causing the big black truck to slide like a sled. Penny and Louise leaped aside, barely avoiding being struck.
As they watched anxiously, the driver recovered control of the machine. He straightened out and brought the truck to a standstill farther up the road.
Penny seized her chum's hand. "Come on, Lou! He's going to give us a ride!"
Before they could reach the truck, the driver lowered the cab window. Thrusting his head through the opening he bellowed angrily:
"What you tryin' to do? Wreck my truck?"
Giving the girls no opportunity to reply, he closed the cab window.
Penny saw that the man was intending to drive on. "Wait!" she called frantically. "Please give us a ride! We're lost and half frozen!"
The man heard for he flashed an ugly smile. Shifting gears, he drove away.
"Of all the shabby tricks, that's the worst!" Penny said furiously. "It wasn't our fault his old truck skidded."
"But it is our fault we're lost on this road," Louise added. "How are we ever to find the listening post?"
Penny leaned against the leeward side of a giant pine. Already it was so dark that she could see only a few feet down the road. There were no houses, no lights, nothing to guide her.
"Penny, are we really lost?" Louise demanded, suddenly afraid.
"We really, truly are," her chum answered in a quavering voice. "The post must be somewhere near here, but we'll never find it. All we can do is try to get back to the car."
AT THE LISTENING POST
Penny's courage did not long forsake her. She had suggested to Louise that they return to the stripped car, but she knew that would not solve their problem. Staring up the dark road, she remarked that they must be close to the summit of the hill.
"Then why not keep on?" urged Louise. "We set out to find the listening post, so let's do it!"
They trudged on up the winding road. At intervals, in an attempt to restore circulation to numbed feet, they ran a few steps. Snow fell steadily, whipping and stinging their faces.
Gasping, half-winded, they kept doggedly on. Finally they struggled into a clearing at the top of the hill. Penny wiped her eyes and gazed down through a gap in the white-coated evergreens. A quarter of the way down the slope on the other side appeared a glowing dot of light.
"I'm afraid it's only a cabin," she said dubiously. "It can't be the airplane listening post."
"Let's go there anyway," advised Louise. "We can warm ourselves and ask how to get back to civilization."
They pushed on, still following the road. Downhill walking was much easier and at intervals they were encouraged by a glimpse of the light.
Then, rounding a bend of the road, the girls came to an artistic, newly constructed iron fence, banked heavily with snow. The fence led to a high gate, and behind the gate loomed a dark, sprawling house with double chimneys.
"The place is deserted!" Louise observed in disappointment. "What became of the light we've been following?"
"It must be farther on. This house looks as if it had been closed for the winter."
Penny went to the gate and rattled a heavy chain which held it in place. Peering through the palings, she could see an unshoveled driveway which curved gracefully to a pillared porch. The spacious grounds were dotted with evergreens and shrubs, so layered with snow that they resembled scraggly ghosts.
"Wonder who owns this place?" speculated Louise.
"Don't know," Penny answered, turning away. "In fact, I don't recall ever having seen it before."
Her words carried special significance to Louise.
"If you've never seen this house before, then we're on a strange road! Penny, we never will find the listening post!"
"I'm beginning to suspect it myself," Penny admitted grimly. "But we must keep plodding on. That light can't be far ahead."
Turning their backs upon the gloomy estate, they again braved the penetrating wind. Soon Louise lost her footing and fell. She remained in a dispirited little heap until Penny pulled her off the ice.
"Let's keep going, Lou," she urged. "It won't be long now."
Louise allowed Penny to pull her along. They rounded a curve in the road, and there, miraculously, the lighted cabin rose before them.
"At last!" exulted Louise. "The Promised Land!"
Staggering up a shoveled path, they pounded on the cabin door. An old man, who held a kerosene lamp, responded promptly.
"Come in, come in!" he invited heartily. "Why, you look half frozen."
"Looks aren't deceitful either," Penny laughed shakily.
As the girls went into the warm room a little whirlpool of wind and snow danced ahead of them. Quickly the old man closed the door. He made places for Penny and Louise at the stove and tossed in a heavy stick of wood.
"Bad night to be out," he commented cheerfully.
Penny agreed that it was. "We're lost," she volunteered, stripping off her wet mittens. "At least we can't find the airplane listening post."
"Why, it's just a piece farther on," the old man replied. "The tower's right hard to see in this storm."
While they thawed out, the girls explained that they had been forced to abandon their car at the Riverview Yacht Club. The old man, whose name was Henry Hammill, listened with deep sympathy to their tale of woe.
"I'll hitch up my horses and take you to Riverview in the sled," he offered. "That is, unless you'd rather stop at the listening tower."
"It would save you a long trip," Penny returned politely. "If Salt Sommers is on duty, I'm sure he'll take us to our homes."
In the end it was decided that Old Henry should drive the girls as far as the post. Then, if arrangements could not be made with the photographer, he would keep on to Riverview.
Warm at last, Penny and Louise declared that they were ready to start. Old Henry brought the sled to the door and the team soon was racing down the icy road. Above the jingle of bells arose occasional squeals of laughter, for the young passengers enjoyed every minute of the unexpected ride.
Presently Old Henry pulled up at the side of the road.
"There's the tower," he said, pointing to a two-story wooden observatory rising above the evergreens. "I'll wait until you find out if your friend's here."
The girls thanked the old man for his kindly help and scrambled from the sled. They were sure their troubles were over, for they could see Salt Sommers seated at a table in the lighted tower.
A flight of steps led to a narrow catwalk which ran around three sides of the glass-enclosed house. Before Penny and Louise could hammer on the door Salt opened it.
"Well, see what the storm blew in!" the young man exclaimed. "I didn't expect you girls to pop in on a night like this."
"Salt, how soon will you be driving to Riverview?" Penny asked breathlessly.
"About twenty minutes. As soon as my relief shows up."
"May we ride with you?"
"Why, sure."
Penny called down from the catwalk to tell Old Henry he need not wait. With a friendly wave of his hand, the cabin owner drove away. The girls then followed Salt into the drafty tower room.
Curiously they gazed at their surroundings. In the center of the room stood a small coal stove. Above it a tacked sign admonished: "Keep this fire going!" There was a table, two chairs and a telephone. Also a round clock which indicated seven-forty.
Before Penny and Louise could explain why they had come, Salt held up a warning finger.
"Listen!" he exclaimed. "Wasn't that a plane?"
He ran out on the catwalk, letting in an icy blast of wind. In a moment he came back, grinning sheepishly.
"A passenger airplane is due through here about this time. Sometimes I listen for it so hard I imagine the sound of the engine."
"The job must get tiresome at times," Penny ventured, making herself comfortable by the glowing stove.
"Oh, it does, but I'm glad to serve my trick. What brings you girls here on such a wild night?"
The story was quickly told. Nevertheless, by the time Penny had telephoned to Mrs. Weems, it was after eight o'clock. Footsteps pounded on the stairway. An elderly man, his hat and overcoat encrusted with snow, swept into the room.
"My relief," said Salt, presenting Nate Adams to the girls. "I'm free to shove off now."
"Hope you can start your car," commented the newcomer. "It's mighty cold, and the temperature is still dropping."
Salt's battered coupe was parked not far from the tower. Snow blanketed the windshield. He wiped it away and after several attempts started the engine.
"Think I'd better stop at the first garage and have more alcohol put in the radiator. No use in taking a chance."
Salt followed the same road over which the girls had trudged an hour earlier. In passing the estate not far from Old Henry's cabin, Penny peered with renewed interest at the big house. In the blinding snow storm she could not be sure, but she thought a light gleamed from an upstairs window.
"Salt," she inquired, "who lives in that place?"
"Can't tell you," he replied, without turning his head.
"Does anyone live there now?"
"Haven't seen anyone since I took over as observer at the tower. Nate Adams tells me the estate has a private air field. No planes have taken off or landed while I've been on duty."
"I thought I saw a light just now in an upstairs window."
"Probably a reflection from the car headlights," Salt answered carelessly.
The car passed Old Henry's cabin and crept on until it came to a crossroad. Several buildings were clustered on either side of the main highway.
"Guess I'll stop at Mattie's garage," Salt said.
As he pulled up on a gravel runway, a masculine looking woman came to the door of the car. She was in her mid-thirties and wore a man's coat much too large for her. The girls guessed, and correctly, that she was Mattie Williams, owner of the garage and filling station.
"How many will you have?" she asked Salt, briskly clearing the windshield of snow.
The photographer replied that he did not require gasoline, but wanted at least a quart of alcohol.
"Drive into the garage," the woman instructed, opening a pair of double doors. "I'll have Sam take care of it."
As the car rolled into the building, Mattie shouted loudly to a stoop-shouldered man who was busy in the rear office: "Hey, Sam! Look after this customer, will you?"
Sam Burkholder slouched over to the car and began to unscrew the radiator cap. Penny and Louise assumed that the man must be Mattie's husband, but a remark to that effect was corrected by Salt.
"Sam is Mattie's partner," he explained in an undertone. "It's hard to tell which one of them is boss of the place."
Losing interest in the pair, Penny and Louise climbed out of the coupe. They had noticed a cafe next door and thought they might go there for a cup of hot coffee.
"Go ahead," Salt encouraged. "I'll stay here until this job is finished, and join you."
As the girls let themselves out the garage door, a truck pulled up in front of the cafe. They would have given it no more than a casual glance had not the driver alighted. He was a short, ruddy-faced man with a missing front tooth which made his facial expression rather grotesque. Without glancing at the girls, he entered the restaurant.
"That man!" exclaimed Louise. "Haven't we seen him somewhere?"
"We have indeed," agreed Penny grimly. "He's the same driver who refused us a ride. Let's march in there and give him a piece of our minds!"