Chapter 21 -A WAILING CRY.

"Jack, Jack," he shouted, as he ran through the fog, blindly, but remembering to veer away from the river bank a little to avoid the danger of tumbling in. "Jack, Jack, where are you?"

A shadow, fog-distorted, loomed before him, big, enormous. A hand gripped his shoulder and brought him to a halt.

"Here I am, Bob. What's the matter?"

Bob r