If that door was bolted from six o'clock last evening until eight o'clock this morning, I'd appreciate having some one drive up in a hearse and tell me how the Canary's little playmate got in here last night. And I'd also like to know how he got out."
"Why not through the main entrance?" asked Markham. "It seems the only logical way left, according to your own findings."
"That's how I had it figured out, sir," returned Heath. "But wait till you hear what the phone operator has to say."
"And the phone operator's post," mused Vance, "is in the main hall half-way between the front door and this apartment. Therefore, the gentleman who caused all the disturbance hereabouts last night would have had to pass within a few feet of the operator both on arriving and departing—eh, what?"
"That's it!" snapped Heath. "And, according to the operator, no such person came or went."
Markham seemed to have absorbed some of Heath's irritability.
"Get the fellow in here, and let me question him," he ordered.
Heath obeyed with a kind of malicious alacrity.
