The tramp assured himself that his hat was well pulled down over his face. He put his hands in his pockets and looked quizzically at the advancing Mr. Fosdike. "So far," he said, "I'm the man that locked the door."

Fosdike started for the second door, which led directly to the platform. The tramp reached it first, and locked it, shouldering Fosdike from him. "Now," he said, Sir William was searching the wall, "are there no bells?" he asked desperately.

"No."

"No?" jeered the tramp. "No bell. No telephone. No nothing. You're scotched without your rifle this time."

Fosdike consulted Sir William. "I might shout for the police," he suggested.

"It's risky," commented the tramp. "They sometimes come when they're called."

"Then——" began the secretary.

"It's your risk," emphasised the tramp. "And, I don't advise it. I've gone to a lot of trouble this last week to keep out of sight of the Calderside police. They'd identify me easy, and Sir William wouldn't like that."

"I wouldn't like?" said Rumbold. "I? Who are you?"

"Wounded and missing, believed dead," quoted the tramp. "Only there's been a lot of beliefs upset in this war, and I'm one of them."