"Bud! Bud! Look!" cried Jack, pointing.

"Great jumping side-winders! I forgot the tunnel!" groaned Bud, his usually emotionless face working in his agitation. He had been handling the sluice desperately, but without result.

"We must close the gates within a second, or it will be too late!" shouted Jack, above the roar of the water. Ralph's despairing face was very close now.

"My poor kid, we can't!" wailed Bud.

"Why not?"

"The double-doggoned, dash beblinkered fool as looks after 'em has padlocked 'em, and we can't git 'em closed without a key!"

There was not a second to think.

Even as the discovery that it would be impossible to close the gates was made, Ralph's white face flashed into view almost beneath them.

Bud made a quick snatch at Jack's lariat, which the boy still retained, and snaked it down over the racing water.