By the afternoon of the fifth day they had made a quantity of bricks which would, they calculated, be ample for the construction of the partition walls of their house.

The boys had just deposited the last brick upon the drying ground, and were moving away, when Hubert cried, "Stop, Charley, don't move a step."

Startled by the suddenness and sharpness of the cry, Charley stood without moving, and was surprised to see his brother pick up one of the wet bricks in both hands, and dash it upon the ground immediately in front of where they were walking.

"I've killed him!" Hubert cried triumphantly; and Charley, looking down, saw a snake of about three feet long writhing in the grass, his head being completely driven into the ground under the force of the lump of wet clay. Two or three stamps of their heavy boots completed the work. And the men coming up to see what was the matter, Hans said that Charley, who would have trodden upon the reptile in another instant had not his brother called out, had had a very narrow escape, for that the snake was the _vivora de la crux_, so called from a mark like a cross upon his head, and that his bite was almost always mortal.