The Englishman left the cottage. Presently another message came.
If Weston has gone, call me to that effect. Be sure that the static eliminator is working. Tell Cooper to watch it.
Harry reached for the sending key. He motioned to Garrison Cooper and pointed toward the box on the table.
"Look in there," he said. "Be sure that the lights change regularly. The static must be bad."
Cooper followed instructions while Harry called. Receiving the reply, he gave the information that Weston had left to investigate the old cabin. The answer came quickly: O.K. Stand by. Important.
Harry waved Cooper from the instrument on the table. He removed his ear phones as he noticed the man's lips were moving.
"I'm worried about Weston," said Cooper nervously. "Suppose I go out on the porch and watch for him?"
"All right," said Harry. "But stay there until I come. There's no danger at the old cabin. This is just a precaution, I suppose."
He clamped the ear phones on his head as Cooper left by the front door. A few minutes elapsed. Then came another message:
Important. The stated time of operations remains the same. But immediately upon the return of Major Weston, tell Cooper that—"