“Is it a similar service, sir?”

“No, quite a different one. But it must be kept secret—in fact, more secret than the other.”

“That couldn’t be, sir.”

“All right. I think I can trust you. For reasons of my own, which you will not care to have explained, I wish to remove these book-shelves from the wall.”

“Does Miss Florence——”

“Miss Florence must know nothing of it. The shelves must be removed and replaced in such a manner as to leave no trace of their having been disturbed.”

“That might be a difficult job, sir.”

“There is no doubt of it. But that does not lessen the necessity for doing it. You can see that they are very strong and firmly put up, and it will require considerable ingenuity and labor to take them down. I want you to help me.”

“Now, sir?”

“No—to-morrow night. I will bring the requisite tools.”