ahead of another puffing boy.

A good ten minutes they lay there, breathing hard. Then both rose
and walked over to the edge and leaned heavily against the girders
as they looked gloomily down the river.

"Looks almost hopeless, doesn't it!" admitted Jerry, finally.

"Worst of it is we don't really know whether she's down below yet or
if we've passed it. She was riding pretty low."

"Wonder what that man was doing on Lost Island?" speculated Jerry,
crossing wearily to the north edge of the bridge and peering through
the gray dawn-mist toward the island, barely visible now. A mere
twinkle of light showed among the trees, and he stood there for a
long minute. Dave come to his side, and the two waited in silence
for the dawn. Jerry had almost fallen asleep standing up, when a
sudden clutch at his arm nearly overbalanced him and sent him
tumbling off the dizzy height.

"Look!" gasped Dave.

"What is it?" exclaimed Jerry, turning to his companion, all sleep
gone.

"I'll swear it's the boat--right under us!"