“Where was the doorway?  This is his son speaking, so tell me all.”

“Just a minute.  Oh!  Here is the report slip.  He was taken from the corner of Avenue A and East Eleventh Street.  You’d better come down right away, for he is apt to die tonight.  He’s only been here ten minutes.”

“Has any one else telephoned to find out about him?”

“No.  We didn’t even know his name until just as you called up, when we found his papers and some warrants in a pocketbook.  How did you know?”

But Shirley disconnected curtly, this time.  He bowed his head in thought, and then, with his usual nervous custom, fumbled for a cigarette.  Here was the Captain, whom he had left on Forty-fourth Street, near Fifth Avenue, a short time before, discovered fully three miles away.

And the news telephoned from Jersey City, by the fleeting magic voice on the wire.  Even his iron composure was stirred by this weird complication.

“I wonder!” he murmured.  He had ample reason to wonder.

CHAPTER III

THE INNOCENT BYSTANDER

“Well, Mr. Shirley, your coming here was a Godsend!  I don’t know what to do now.  The newspapers will get this surely.  I depended on Cronin:  he must have been drinking.”

Shirley shook his head, as he explained, “I know Cronin’s reputation, for I was a police reporter.  He is a sterling man.  There’s foul work here which extends beyond your father’s case.  But we are wasting time.  Why don’t you introduce me to your physician?  Just tell him about Cronin, and that you have confided in me completely.”

Van Cleft went upstairs without a word.  Unused to any worry, always able to pay others for the execution of necessary details, this young man was a victim of the system which had engulfed his unfortunate sire in the maelstrom of reckless pleasure.

By his ingenuous adroitness, it may be seen, Shirley was inveigling himself into the heart of the affair, in his favorite disguise as that of the “innocent bystander.”  His innate dramatic ability assisted him in maintaining his friendly and almost impersonal role, with a success which had in the past kept the secret of his system from even the evildoers themselves.

“A little investigation of the telephone exchanges during the next day or two will not be wasted time,” he mused.  “I’ll get Sam Grindle, their assistant advertising manager to show me the way the wheels go ’round.  No man can ride a Magic Carpet of Bagdad over the skyscrapers in these days of shattered folklore.”

Howard Van Cleft returned with the famous surgeon, Professor MacDonald.  He was elderly, with the broad high forehead, dignity of poise, and sharpness of glance which bespeaks the successful scientist.  His face, to-night, was chalky and the firm, full mouth twitched with nervousness.  He greeted Shirley abstractedly.  The criminologist’s manner was that of friendly anxiety.