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132 Ask for Mr. Hersheimmer, and when you get him tell him to get Sir James and come on at once, as Mrs. Vandemeyer is trying to hook it. If you can't get him, ring up Sir James Peel Edgerton, you'll find his number in the book, and tell him what's happening. You won't forget the names, will you?"

Albert repeated them glibly. "You trust to me, miss, it'll be all right. But what about you? Aren't you afraid to trust yourself with her?"

"No, no, that's all right. But go and telephone. Be quick."

Drawing a long breath, Tuppence entered the Mansions and ran up to the door of No. 20. How she was to detain Mrs. Vandemeyer until the two men arrived, she did not know, but somehow or other it had to be done, and she must accomplish the task single-handed. What had occasioned this precipitate departure? Did Mrs. Vandemeyer suspect her?

Speculations were idle. Tuppence pressed the bell firmly. She might learn something from the cook. Nothing happened and, after waiting some minutes, Tuppence pressed the bell again, keeping her finger on the button for some little while. At last she heard footsteps inside, and a moment later Mrs. Vandemeyer herself opened the door. She lifted her eyebrows at the sight of the girl.

"You?"

"I had a touch of toothache, ma'am," said Tuppence glibly. "So thought it better to come home and have a quiet evening."