On an impulse, he picked up the telephone book and looked up the name of Revel. There were six Revels in the book: Edward Henry Revel, surgeon, of Harley Street; James Revel & Co. , saddlers; Lennox Revel of Abbotbury Mansions, Hampstead; Miss Mary Revel with an address in Ealing; Hon. Mrs. Timothy Revel of 487, Pont Street; and Mrs. Willis Revel of 42, Cadogan Square. Eliminating the saddlers and Miss Mary Revel, that gave him four names to investigate⁠—and there was no reason to suppose that the lady lived in London at all! He shut up the book with a short shake of the head.

“For the moment I’ll leave it to chance,” he said. “Something usually turns up.”