Cavendish took away a copy of it in his pocket.

And, Mr.Farriss, I got something else, too--Enright and young John Cavendish are in communication further.

I saw him leaving Enright's office all excited.

Following my hunch, I cultivated Miss Healey, Enright's stenographer, and learned that the two had an altercation and that it was evidently over some document." Farriss was interested.
"Enright's in this deep," he muttered thoughtfully, "but how?
Well--what else ?" Stella Donovan began speaking now: "I fixed it with Chambers, the manager of the Fairmount, to get Josette La Baum--she's Valois's _fiancee_, you remember--into the hotel as a maid.

Josette 'soaped the keyhole' of the drawers in John Cavendish's rooms there.