enter your own flat when the voices of Dr. Cumberly and Mr. Leroux attracted your attention?”
“I actually had the key in my hand,” replied Exel.
“Did you actually have the key in the lock?”
“Let me think,” mused Exel, and he took out a bunch of keys and dangled them, reflectively, before his eyes. “No! I was fumbling for the right key when I heard the voices above me.”
“But were you facing your door?”
“No,” averred Exel, perceiving the drift of the inspector’s inquiries; “I was facing the stairway the whole time, and although it was in darkness, there is a street lamp immediately outside on the pavement, and I can swear, positively, that no one descended; that there was no one in the hall nor on the stair, except Mr. Leroux and Dr. Cumberly.”
“Ah!” said Dunbar again, and made further entries in his book. “I need not trouble you further, sir. Good night!”
Exel, despite his earlier attitude of boredom, now ignored this official dismissal, and, tossing the stump of his cigar into the grate, lighted a cigarette, and with both hands thrust deep in his pockets, stood leaning back against the mantlepiece. The detective turned to Leroux.
“Have a brandy-and-soda?” suggested Dr. Cumberly, his eyes turned upon the pathetic face of the novelist.
But Leroux shook his head, wearily.
