parallel with the shore as was possible.

"Now, try to be keener than ever," Dick urged, as Dave paced off
another twenty steps higher up. "We're in a growth of deeper
forest, with a bigger tangle of underbrush and it will be easy
enough to overlook something."

The two boys trudged on. They were five minutes on their way
back, perhaps, when Dick heard a sudden scrambling in the underbrush
not far away. Then Prescott caught sight of a human figure, yet
so fleetingly that he could have given no description of it.

"Is that you, Darry?" he called sharply.

But it wasn't, for no answer came back, save for the slight sound
of someone going through the brush farther on.

"Dave! Darry!" shouted Prescott. "Here! Quickly!"

Then Dick dashed on in pursuit, calling again and again until
Dave came in sight and joined in the chase.

"What was it?" panted Dave, as he came within hailing distance.

"Someone running away from me," Dick explained.

"What did he look like?"

"I didn't have a chance to see. Let's travel hot-foot."