"Not the least bit of a sign."

"Too bad!" and the young engineer gave a deep sigh.

Slowly the hours dragged by. It was very warm, but there were signs of a storm in the air.

Dave set to work to gather some firewood, thinking a good fire would serve to keep them comfortable in case of a heavy rain.

"I shouldn't be surprised if we got a heavy one, when it does come," remarked Captain Broadbeam, as he gazed at the sky.

"Storms in the tropics are apt to prove severe," said Doctor Barrell.

Having collected the firewood, Dave went out with his bow and arrows to see if he could bring down some more birds.

At first he moved but a short distance from the camp, but presently he saw some extra fine birds at a distance and followed them toward the north shore of the island.

He had just brought down one bird and was trying for a second when the storm broke and the rain began to come down heavily.

"This is severe, and no mistake," he murmured. "Guess I'll have to find shelter unless I want to get soaked."