'I say, Hadley,' he remonstrated. 'You're working yourself up into a lather. Be calm, It'll come out all right. Just keep on in your normal course.'

The chief inspector regarded him bitterly.

`Unless our questioning of the other visitors turns up. something,' he said, `we have only one other person to interview. And thank God. I need a brandy. Several brandies. But for the next few minutes, Doctor, you are going to be the chief inspector. With the next witness it becomes your case. In other words, you are going to examine Julius Arbor.?

'With pleasure,' said the doctor, `if you'll give me your chair.' He hauled himself to his feet as Hadley summoned the warder on guard and gave instructions. `It's what I should have asked to do, in any case, Hadley. Because why? Because a good part of the case depends on it. And that side of the case — shall I tell you what that side of the case hinges on, Hadley?'

`You will, anyhow. Well?'

`It hinges on a stolen manuscript,' said Dr Fell.

8. Mr Arbor's Aura

Dr Fell hung his cloak over the back of the chair: Then he squeezed himself into the chair and arranged his various ridges of stomach.

'I don't know whether I ought to let you do this,' said, Hadley. 'I don't want the, General to think we're both mad. And for the love of God try to control your deplorable sense of humour. This is serious business.' He massaged his chin uncomfortably. 'You see, General, in his own way Doctor Fell is invaluable. But he gets his ideas of police procedure from the cinema, and he is under the impression that he can act any sort of part. Whenever I let him question anybody in my presence he tries to give an imitation of me. The result sounds like a schoolmaster with homicidal mania trying to find out what fourth-former spread the axle grease on the, stairs when the headmaster was coming down to dinner

Dr Fell grunted. 'Ha,' he said. 'Your analogy, while classical, supports me rather than you. It seems to me, Hadley, that you are the one who is going about grimly determined to discover who put the barrister's wig on the cabhorse. I'm exactly the detective you want. Besides schoolboys; are much more ingenious than that. Now, an outhouse of medium weight, carefully substituted for the statue of the headmaster on the night before the public unveiling of the latter'