When the Reichsfuhrer asked him his opinion of the plans, Weisthor stammered his answer: ‘In, er . . . in terms of the, er . . . cult importance of the . . . er . . . castle,’ he said, ‘and, er ... its magical importance in any, er ... in any future conflict between, er . . . East and West, er . . .’

Heydrich interrupted, and it was immediately apparent that it was not to help the Brigadefuhrer.

‘Reichsführer,’ he said coolly, ‘since this is a court, and since we are all of us listening to the Brigadefuhrer with enormous fascination, it would I believe be unfair to you all to permit him to go any further without acquainting you of the very serious charges that have to be made against him and his colleague, Unterscharfuhrer Rahn.’

‘What charges are these?’ said Himmler with some distaste. ‘I know nothing of any charges pending against Weisthor. Nor even of any investigation affecting him.’

‘That is because there was no investigation of Weisthor. However, a completely separate inquiry has revealed Weisthor’s principal role in an odious conspiracy that has resulted in the perverted murders of seven innocent German schoolgirls.’

‘Reichsführer,’ roared Weisthor, ‘I protest. This is monstrous.’

‘I quite agree,’ said Heydrich, ‘and you are the monster.’

Weisthor rose to his feet, his whole body shaking.

‘You lying little kike,’ he spat.

Heydrich merely smiled a lazy little smile. ‘Kommissar,’ he said loudly, ‘would you please come in here now?’

I walked slowly into the room, my shoes sounding on the wooden floor like some nervous actor about to audition for a play. Every head turned as I came in, and as fifty of the most powerful men in Germany focused their eyes on me, I could have wished to have been anywhere else but there. Weisthor’s jaw dropped as Himmler half rose to his feet.

‘What is the meaning of this?’ Himmler growled.

‘Some of you probably know this gentleman as Herr Steininger,’ Heydrich said smoothly, ‘the father of one of the murdered girls. Except that he is nothing of the kind. He works for me. Tell them who you really are, Gunther.’

‘Kriminalkommissar Bernhard Gunther, Murder Commission, Berlin-Alexanderplatz.’

‘And tell these officers, if you will, why you have come here.’

‘To arrest one Karl Maria Weisthor, also known as Karl Maria Wiligut, also known as Jarl Widar; Otto Rahn; and Richard Anders, all for the murders of seven girls in Berlin between 23 May and 29 September 1938.’

‘Liar,’ Rahn shouted, jumping to his feet, along with another officer whom I supposed to be Anders.

‘Sit down,’ said Himmler. ‘I take it that you believe that you can prove this, Kommissar?’ If I’d been Karl Marx himself he couldn’t have regarded me with more hatred.

‘I believe I can, sir, yes.’

‘This had better not be one of your tricks, Heydrich,’ Himmler said.