It was a steamer, the first steamer that had ever made its way up the Parana. Chush! Chush! Chush! It seemed to be getting further away again. Chug! Chug! Chug! It had disappeared from view.

One by one, the alligators climbed up out of the water onto the bank again. They were all quite cross with the old alligator who had told them wrongly that it was a whale.

“It was not a whale!” they shouted in his ear—for he was rather hard of hearing. “Well, what was it that just went by?”

The old alligator then explained that it was a steamboat full of fire; and that the alligators would all die if the boat continued to go up and down the river.

The other alligators only laughed, however. Why would the alligators die if the boat kept going up and down the river? It had passed by without so much as speaking to them! That old alligator didn’t really know so much as he pretended to! And since they were very hungry they all went fishing in the stream. But alas! There was not a fish to be found! The steamboat had frightened every single one of them away.

“Well, what did I tell you?” said the old alligator. “You see: we haven’t anything left to eat! All the fish have been frightened away! However—let’s just wait till tomorrow. Perhaps the boat won’t come back again. In that case, the fish will get over their fright and come back so that we can eat them.” But the next day, the steamboat came crashing by again on its way back down the river, spouting black smoke as it had done before, and setting the whole river boiling with its paddle wheels.

“Well!” exclaimed the alligators. “What do you think of that? The boat came yesterday. The boat came today. The boat will come tomorrow. The fish will stay away; and nothing will come down here at night to drink. We are done for!”

But an idea occurred to one of the brighter alligators: “Let’s dam the river!” he proposed. “The steamboat won’t be able to climb a dam!”

“That’s the talk! That’s the talk! A dam! A dam! Let’s build a dam!” And the alligators all made for the shore as fast as they could.

They went up into the woods along the bank and began to cut down trees of the hardest wood they could find—walnut and mahogany, mostly. They felled more than ten thousand of them altogether, sawing the trunks through with the kind of saw that alligators have on the tops of their tails. They dragged the trees down into the water and stood them up about a yard apart, all the way across the river, driving the pointed ends deep into the mud and weaving the branches together. No steamboat, big or little, would ever be able to pass that dam! No one would frighten the fish away again! They would have a good dinner the following day and every day! And since it was late at night by the time the dam was done, they all fell sound asleep on the river bank.