"Instantly," he shouted down, "and be sure you hold the messenger. It may be from your lady," he remarked to Mr. Ransom. "Stranger things than that have happened."

Mr. Ransom reeled to the door, opened it and stood waiting. The two detectives exchanged glances. What might not that note contain!

Mr. Ransom opened it in the hall. When he came back into the room, his hand was shaking and his face looked drawn and pale. But he showed no further disposition to go out. Instead, he sank into a chair, with a motion of dismissal to the two detectives.

"Question the boy who brought this," said he. "It is from Mrs. Ransom; written, as you see, at the St. Denis. She bids me farewell for a time, but does not favor me with any explanations. She cannot do differently, she says, and asks me to trust her and wait. Not very encouraging to sleep on; but it's something. She has not entirely forsaken me."

Gerridge with a shrug turned sharply towards the door. "I take it that you wouldn't object to knowing all the messenger can tell you?"

"No, no. Question him. Find out whether she gave this to him with her own hand."

Gerridge obeyed this injunction, but was told in reply that the note had been given him to deliver by a clerk in the hotel lobby. He could tell nothing about the lady.

This was unsatisfactory enough; but the man who had influenced her to this step had been placed under surveillance. To-morrow they would question him; the mystery was not without a promise of solution. So Gerridge felt; but not Mr. Ransom; for at the end of the lines whose purport he had just communicated to the detective were these few, significant words:

"Make no move to find me. If you love me well enough to wait in silence for developments, happiness may yet be ours."