"Good, Then between twelve and three the body must have been stolen. You are a light sleeper, I heard you say, major?"

"Well, yes," returned Jen, with a thought upon the rapping of Isabella upon the window. "It does not take much to waken me."

"You would have heard Jaggard call out, I suppose?"

"Certainly. The bedroom is no great distance from the library, and the door of the latter was open. But then Jaggard didn't cry out!"

"Precisely," said Arkel, laying his forefinger on Jen's chest with an air of triumph. "He did not cry out. Had he been asleep and woke up in time to see the robbers get in by the window, he would have called out at once for assistance."

"True enough," rejoined the major, struck by this sensible deduction. "Still, he might not have heard them forcing the window."

"I doubt that, I doubt that. Jaggard, like yourself, is an old campaigner, and no doubt an alert sleeper; that is," explained Arkel, "he would wake up at the least sound."

"Yes, I think he would. But what does all this tend to?"

"Simply to a theory I have in my head. Jaggard was drugged, sir."

"But the wound at the back of the head which stunned him?"