"A discovery. What is it?"

"I know who drugged Jaggard. I have learned who stole the body of Maurice!"

"Then you know more than I do," replied David, with all the appearance of truth. "My knowledge extends only to the death; not to the seizure of the body."

"And you refuse to aid me," said the major, reproachfully; "well, keep your secret, I may be able to do without your help. But," added Jen, fixing a piercing glance on the young man, "I notice that you do not ask me the name of the person who drugged Jaggard."

"Because I guess the name."

"Ah!"

"Mrs. Dallas," said David, faintly. "It was Mrs. Dallas."

Jen drew back a step and looked at his ward with marked surprise.

"No," he said, at length. "Mrs. Dallas has had nothing to do with it."

"But I thought from what you said of the handkerchief dropped in the room--"