“The old punk swears he kept a registration book.” Duncan said. “He swears he entered all the cars parked in the lot last night, but the book’s missing.”

Donovan belched gently, pulled his coffee cup towards him and groped for a cigarette.

“It couldn’t have got up and walked,” he said. “It must be somewhere.”

“This guy in the grey suit could have taken it,” Duncan said. “He went into the hut and got talking with the old fella. He could have taken it, knowing his car number was in the book.”

Donovan nodded.

“Yeah. If he did take it, it’s destroyed by now. This guy in the grey suit looks like our man.” He pulled his notebook out of his hip pocket and thumbed through the pages. “Let’s see what we’ve got. At ten to nine last night, the guy leaves a green Lincoln, number not known, in the car park; tells the attendant if his friend is in he may stay the night. At half-past ten, he and the murdered woman pick up a taxi outside the house for the Blue Rose. The driver identifies him and Carson. Darcy and the doorman at the Blue Rose also identify him from our description. Darcy hasn’t seen him before. He doesn’t think he is an ordinary masher. Carson didn’t take her clients to the Blue Rose. Our guy must be something special. Okay, Around twelve-thirty he and the girl take a taxi back to her apartment. The driver is sure it’s our guy. According to Doc, the girl dies around one-thirty. Our guy is seen by this Christie dame leaving the house: he appears to be in a hurry. He then turns up at the parking lot. The attendant is sheltering from the rain in his hut. Our guy joins him and talks about the storm. Then he starts to go, but the attendant wants to mark off his car in his book, but he can’t find it. He asks him for his number, and he gives him the number of a Packard that’s been on the lot for a couple of days, and is still there now. Now why did he give the wrong car number unless he was in trouble?” Donovan closed his note book and ran his thumb nail across his ginger moustache. “That’s not a bad day’s work, Duncan. If we can find this guy, we’ve almost got enough on him to put him away.”

“We have to find him first,” Duncan said, finishing his coffee and standing up. “I have an idea, sarg; Darcy is holding out on us. I think he knows who this guy is.”

Donovan shrugged.

“I don’t know. He looked a little shifty, but maybe he has something to hide up himself,” he said, getting off his stool. “You can’t make a guy like Darcy talk unless he wants to. What I want to find out is if our guy was a regular customer of Carson’s or just a chance caller. The fact she took him to the Blue Rose makes it look like he is a regular. What we’ve got to find out now is who her men friends are. She must have known a hell of a lot of guys, but there must have been several she knew better than others.”

Duncan dropped his cigarette end on the floor and trod on it.