He was anxious to get back to his apartment to find out if Frank Barnes had called. As he drove back along Woodward Street he couldn't put Paula out of his mind. He already had her character pegged. But what was she up to? What was her goal? She wasn't doing all this for a lousy commission. The stakes were bigger than that. In a way it was too bad she was going to have to settle for less than she bargained for. If her seven clients hadn't been so phoney she might have gotten away with it. But why was it necessary for them to be phoney? Why should a girl as shrewd as Paula send seven men in disguise to see ... Disguise! Somehow that word threw a different light on the matter. The men had all been disguised in places where hair should grow. They were _not_ bald. There was something abnormal about them. And Harry was ninety percent certain what it was. The answer was incredible. There was still a ten-percent margin for error. For Miss Paula Ralston's sake he hoped he was wrong. * * * * * Frank Barnes' message was waiting for him at the switchboard in the lobby. The word "urgent" was written on it. He raced upstairs and picked up the phone. Frank answered on the first ring. He sounded like a man with a gun at his back. "Harry, what the hell kind of a mess have you gotten yourself into?" "Why? Something go wrong?" "You bet your sweet life. An hour after you called me to check on that Ralston dame a guy came into the office and told me to lay off." Harry was silent. And scared. His answer looked better all the time. "What did the guy look like?" "He looked important, Harry. And he meant business. He had a big bulge in his pocket and he made it very clear I'd be up to my funny bone in hot lead if I relayed any information about this girl to you." "Frank, was the guy wearing a toupee?" "A what?" "A toupee, a hair piece!" "How the hell should I know. I wasn't interested in his coiffure. He was wearing a black overcoat, he kept his hand on that bulge and he didn't care much for smiling. Harry, you in trouble with this dame?" "What did you find out about her, Frank?" "Between the time you called and the time the guy strolled into the office I found out she's only had this Personnel Consultant racket for about three months." "You didn't learn anything else?" "After I got warned I decided to wait'll I talked with you." Harry was silent again. His mind was working. "Frank, what causes baldness?" "Baldness! Geez, Harry, you're in a fat mess of trouble and you're worrying about losing your hair?" "It's important, Frank. I must find out what causes total loss of _all_ hair." The detective grunted. "Well, let's see, there are three or four diseases I know of. Some people claim it's hereditary. Sometimes a deficiency in the genes ..." "Okay, Frank, that's enough." "What do you want me to do about the girl?"