A faint smile touched the finely chiselled lips of the High Priestess. 'My dear, I fear you are still very ignorant. For many centuries after Christ the Imposter, nearly all the Christian Bishops knew enough of the truth to follow the Old religion in secret, and many Popes served Our Lord Satan well. Pope Leo the Great and Pope Silvester II both enjoyed His special protection, and Pope Honorius was the greatest magician of them all. It was he who wrote Le Grimoire which, with the Clavicule of Solomon, is the most profound work on the Secret Art ever produced.'

By this time Mary had undressed, and for the next ten minutes she luxuriated in the warm, scented water of the big bath, her enjoyment now only a little marred by thoughts of what the next hour might hold for her. The test she was being given seemed simple enough of accomplishment, and there was nothing about it to disgust or frighten her; yet, all the same, she could not rid herself of an uneasy premonition that it might develop into something much more unpleasant than she had any reason to expect.

As she got out of the bath she was trying to assure herself that her fears were groundless, that by nine o'clock, or half-past at the latest, she would have left this haunt of evil for the last time, be breathing again the clean air of the streets and, soon afterwards, be giving Colonel Verney all the information he needed to swoop upon and arrest Teddy's murderers.

Wrapped in a huge bath-sheet she returned to the bedroom and said to Honorius, 'As I'm to go to bed I must have a nightie. I take it there is one here you can lend me?'

The High Priestess shook her head. 'For this affair you will not wear one. An essential part of Abaddon's design is that when you sit up in bed and put one arm round Mr. X's neck you should be naked.'

Mary blanched. She knew only too well the effect that the sight of her nude body had on men. This was just the sort of thing she had feared. It must be part of their plan that Mr. X should attempt to rape her.

14.In the toils