“Let’s keep on with this echo for a while,” said he, “until we work that out. Then perhaps we’ll show ourselves.”

“Or send them out our cards, b’gee,” chuckled Dewey. “Come ahead.”

During this the yearlings had been holding a consultation. They were gathered together in a group, whispering about the mystery, and occasionally staring at the trees around them and at the top of the cliff far above. It is needless to say that they saw nothing suspicious. Finally they turned to test the echo some more.

“Hello!” cried Rogers.

“Hello” (a whisper).

“Say, you fellows, whoever you are, I wish you’d come out and quit your fooling!”

That was from Rogers. And right then came the climax. The echo started to repeat that sentence.

“Say, you fellows, whoever you are——”

And there it stopped—​stuck! It had forgotten the rest of what it was to say. The yearlings stared at each other, and finally began to laugh. An echo that forgot was indeed a strange variety.

Suddenly it spoke again.