How he came to give birth to two ideas with no more than a week between them, puzzled all who knew him, and still more that he survived this extraordinary strain upon the gray matter of the cerebrum.
His new idea was to have driven a heavily-laden mule cart around the inside of the Dead Line at least once a day.

The wheels or the mule's feet broke through the thin sod covering the tunnels and exposed them.
Our tunnel went with the rest, and those of our crowd who wore shoes had humiliation added to sorrow by being compelled to go in and spade the hole full of dirt.

This put an end to subterranean engineering.
One day one of the boys watched his opportunity, got under the ration wagon, and clinging close to the coupling pole with hands and feet, was carried outside.

He was detected, however, as he came from under the wagon, and brought back..