That was the occasion, you will remember, when the three children saved the train from being wrecked by waving six little red-flannel-petticoat flags.

It is always interesting to watch people working, especially when they work with such interesting things as spades and picks and shovels and planks and barrows, when they have cindery red fires in iron pots with round holes in them, and red lamps hanging near the works at night.

Of course the children were never out at night; but once, at dusk, when Peter had got out of his bedroom skylight on to the roof, he had seen the red lamp shining far away at the edge of the cutting.

The children had often been down to watch the work, and this day the interest of picks and spades, and barrows being wheeled along planks, completely put the paperchase out of their heads, so that they quite jumped when a voice just behind them panted, "Let me pass, please." It was the hare--a big-boned, loose-limbed boy, with dark hair lying flat on a very damp forehead.

The bag of torn paper under his arm was fastened across one shoulder by a strap.