This was enough to send Jack and Mark off on a run up the bank, and did they stop until they heard Andy’s voice hailing them.

“What’s the matter, boys?”

“Come here! Quick!” answered Jack.

The fish-animal had halted and seemed to be taking an observation. To do this, as it could not turn its neck, it had to shift its whole body. Old Andy came up on the run, his gun held in readiness.

“Where is it?” he asked, and the boys pointed silently.

The hunter could not repress a start of astonishment as he saw the strange creature. But he did not hesitate a second. There was a crack of the rifle, and the thing, whatever it was, toppled over, dead.

Andy hurried up to it, to get a closer view.

“Well, this is the limit!” he exclaimed. “First we have grasshoppers that can roll peaches as big as hogsheads, and now we come across fish that walk. I wonder what we will see next.”

“I don’t want to go fishing in this lake any more,” spoke Jack, as he looked at the repulsive creature. “I never want to eat fish any more.”

“Same here,” agreed Mark, and old Andy was of the opinion that the thing killed would not make a wholesome dish for the table.