Bocaros again looked bewildered. "I hardly know. I left it in this room, and I never found it again."
"Did you not send the key to me?"
"No; I swear I did not."
"Then who did?"
"I can't say. The key was left here, and lost. I used the other."
"H'm!" said Arnold, after a pause. "Go on, and tell us about your doings on that night. We can talk of the missing key later. What happened?"
"I appointed to meet Mrs. Brand in the garden. She had the key, and so had I. She told me that she had written asking her husband to come up. She sent the letter to Ajax Villa, and thought it would be sent on. I was annoyed at this."
"Did she tell you this when you met?"
"No; because we did not meet on that night."
"How was that?"