'To blindfold you this evening would not be good. The taxi-man perhaps see and think something funny. Almost now you are one off us, so no great matter if you know where the Temple ees. Should you fail in test, then I hypnotize you and you forget place to weech you haf been taken. If your failure off test ees not too bad, perhaps you be permitted later to take a second time. But you will not fail. I haf full confidence.'

His words had the effect on Mary of a further shot of a stimulating drug. That she was to be allowed to know the whereabouts of the Temple came as a swift first payment for her renewed resolution to carry on with her dangerous mission. It determined her to face the test boldly and go through with it if she possibly could; so that afterwards there would be no question of depriving her of that valuable knowledge. But her mind was still half engaged on the shoes.

After Verney had broken the news of Teddy's death to her, Inspector Thompson of the Special Branch had called and informed her that he was conducting the official enquiry. She had given him all the help she could by making a long statement and, on two subsequent occasions before she left Wimbledon, he had come to the flat again to ask her further questions. On one of these he had told her that, in due course, Teddy's clothes would be returned to her but for the time being they wished to keep them at the Yard to complete various tests, and she had thought no more of the matter.

Now she realized that, had the clothes been sent back, or shown to her, she would at once have spotted that the shoes taken from Teddy's feet were not his own; whereas the police, having no reason to suppose that a substitution had taken place, must still be ignorant of that fact. It dawned on her then that not only did Ratnadatta's possession of Teddy's shoes indicate that he had been an accomplice in the murder; those that the police held were almost certain to be his and, if so, they constituted most damning evidence against him. They were a rope round his neck, and she now had only to let Colonel Verney know of her discovery for it to lead to the Indian's arrest.