“That’s a noise I never heard before. Listen!”

The other alligator listened: Chug! Chug! Chug!

In great alarm the two alligators went calling up and down the river bank: “Danger! Danger!” And all their sisters and brothers and mothers and fathers and uncles and aunts woke up and began running this way and that with their tails curled up in the air. But the excitement did not serve to calm their fears. Chug! Chug! Chug! The noise was growing louder every moment; and at last, away off down the stream, they could see something moving along the surface of the river, leaving a trail of gray smoke behind it and beating the water on either side to foam: Chush! Chush! Chush!

The alligators looked at each other in the greatest astonishment: “What on earth is that?”

But there was one old alligator, the wisest and most experienced of them all. He was so old that only two sound teeth were left in his jaws—one in the upper jaw and one in the lower jaw. Once, also, when he was a boy, fond of adventure, he had made a trip down the river all the way to the sea.

“I know what it is,” said he. “It’s a whale. Whales are big fish, they shoot water up through their noses, and it falls down on them behind.”

At this news, the little alligators began to scream at the top of their lungs, “It’s a whale! It’s a whale! It’s a whale!” and they made for the water intending to duck out of sight.

But the big alligator cuffed with his tail a little alligator that was screaming nearby with his mouth open wide. “Dry up!” said he. “There’s nothing to be afraid of! I know all about whales! Whales are the afraidest people there are!” And the little alligators stopped their noise.

But they grew frightened again a moment afterwards. The gray smoke suddenly turned to an inky black, and the Chush! Chush! Chush! was now so loud that all the alligators took to the water, with only their eyes and the tips of their noses showing at the surface.

Cho-ash-h-h! Cho-ash-h-h! Cho-ash-h-h! The strange monster came rapidly up the stream. The alligators saw it go crashing past them, belching great clouds of smoke from the middle of its back, and splashing into the water heavily with the big revolving things it had on either side.