But as soon as the raiding party were clear of the British trenches the guns began again. A whizzbang dropped into the trench where the two friends were sitting, and burst. That was the last thing that Bill Grant knew until he woke some days later to find himself in a Casualty Clearing Station.

A Sister came towards him.

"Awake at last," she said cheerily.

He stared stupidly at her.

"Where am I?" he said. "Where's Alf 'Iggins?"

"Next bed, ole son," said a weak voice. "Leg broke."

Bill pondered this information for a space. Then a thought struck him and he sat up with a jerk. The Sister came over to him.

"You must lie down and keep quiet," she said.

"The Button!" exclaimed Bill fiercely.

The Sister looked anxious.