“I am so sorry, Miss Watson. I was so upset for the moment. There is no immediate danger. In fact, his one chance lies with keeping your brother safe, for the moment, but his life is in danger. I am bound to tell you that I have given orders for the house in Leveson Square to be watched, but it may not be there.”

“What may not be there?” said Allery; “we are all in the dark.”

“I know. I will explain, but there’s no time now.

“As far as I know he’s gone to London and he will not spare the car. He may not go direct in case of some such action as I have taken.”

Sanders came in.

“The car will go now,” he said. “Luckily the chauffeur had spare parts, otherwise it would have been hopeless, and there was evidently not much time to tamper with it. I’ll get off, if you tell me where to go.”

“Oh, don’t go,” said Mabel with a revulsion of feeling. “Surely the police can do all that’s necessary?”

“I’m going,” said Sanders, and his jaw set square. There was a long account to settle with this man.

“Go direct to London, as hard as you can. Don’t stop to ask questions on the way. Go to Leveson Square; here, take my card with you, and explain to the men on duty there. If you don’t catch them on the road, and I’m afraid you have a poor chance, he will have got there first. They have full instructions to act, but you must get hold of Watson, and see to his safety if you can. Good luck to you. Telephone if you can. Use my name, and they will give you priority.”

Without even looking at Mabel or saying good-bye, he went out.