Conrad smiled.

“Of course, but with you I have a special problem. I can’t keep you here much longer. I shall soon have to think what I’m going to do with you.” He looked down at his hands, frowning. “The solution to your problem, and to Werner’s for that matter, would be the arrest of Maurer. Once I have got him behind bars, there would be little danger to you both. I could then hold you both as material witnesses and protect you until after the trial. When Maurer’s convicted, I could arrange for you to go to Europe until all the fuss has died down. You could then come back and start your life over again and in perfect safety. But I can’t get a conviction against Maurer unless you’ll give evidence against him.”

He saw her immediately stiffen.

“I have a hunch you did see Maurer at Dead End,” he went on before she could speak. “I believe you have a very personal reason for avoiding the inevitable publicity of the trial. Isn’t this something we can discuss? Couldn’t you trust me and let me help you?”

Frances didn’t say anything. She had gone a shade paler and her hands began to tremble.

“Now look,” he went on quietly, “we’re alone together. No one can hear what we’re saying. There are no witnesses. Won’t you take me into your confidence? Forget I’m a police officer. Let’s talk as private individuals. Put your cards on the table and let me advise you. I give you my word I won’t use anything you tell me unless you say so. I can’t be fairer than that, can I?”

He saw her hesitate, and for a brief moment he began to hope he was at last going to succeed.

But Frances was thinking of what Pete had said: The thing that matters is you must never admit having seen him: not to me; nor to Conrad, nor anyone; not even to your mother or your father. You must never admit you saw him; not even to yourself! You stand a slight chance of keeping alive so long as you say nothing. But understand this: if you let Conrad persuade you to tell him what you know — if you know anything — then no power on earth can save you!

She stood up.

“I have nothing to tell you. If you don’t mind I’ll go in now. I’m finding the sun rather hot.”