You will also remember, perhaps that I didn't state that the plans themselves were gone, for they rested in my safe, and are there at this moment.

Acting that afternoon on an impulse that I did not very well understand, I took the landing plans from their envelope and filled the envelope with blank paper after having put the plans in the safe.
"Cantor had knowledge of the envelope, and supposed, as any one would have done, that the plans were inside.

When my back was turned for an instant Cantor took the envelope, which I did not immediately miss, as I had no idea that any of my officers was untrustworthy.

Cantor hurried to his own quarters, and there discovered the blank paper substitution.

Furious, yet hating Darrin for reasons which you now understand, Cantor hastened to Darrin's room and slipped the envelope in under Darrin's mattress.
Cantor has admitted it to me---whatever the word of an adjudged lunatic may be worth poor fellow! "Now, as to Cantor's need of money, he was overwhelmed with gambling debts in New York.