Celia shook her head.

"I don't mind travelling all night for half a dozen nights if I can track my lost property," she said lugubriously. "You're dead sure it's no use stopping here?—that the robbery didn't take place here?"

"Sure!" answered Fullaway. "We must get off. That French damsel's got to be found—somehow."

The supper-party came to an end—the prima donna and her temporary maid began to bustle with garments and trunks, the two men attended to all other necessary matters, and at two o'clock in the morning the three sped out of Edinburgh for the South, each secretly wondering what was going to come of their journey. Allerdyke, preparing to go to sleep in the compartment which he and Fullaway occupied by themselves, dropped one grim remark to his companion as he settled himself.

"Seems like a wild-goose chase this, my lad, but it's one we've got to go through with! What'll the next stage be?"

The next stage was an arrival in London in the middle of a lovely May morning, a swift drive to Celia Lennard's flat in Bedford Court Mansions, the hurried rummaging of its owner amongst an extraordinary mass of papers, books, and documents, and the ultimate discovery of the French maid's address. Celia held it up with a sigh of vast relief, which changed into a groan of despairing doubt.

"There it is!" she exclaimed. "Lisette Beaurepaire, 911 Bernard Street, Bloomsbury—I knew it was Bloomsbury. That's where she lived when I engaged her, anyhow—but then her sick mother mayn't live there! The man who met her at Hull, who said he was her brother, didn't say where the mother lived, except that it was in London."

"We must go to Bernard Street, anyway, at once," said Fullaway. "We may get some information there."

But such information as they got on the door-step of 911 Bernard Street was scanty and useless. The house was a typical Bloomsbury lodging-place, let off in floors and rooms. Its proprietor, summoned from a neighbouring house, recollected, with considerable difficulty and after consultation of a penny pocket-book, that he had certainly let a top-floor room to a young Frenchwoman about a year ago, but he had never caught her name properly, and simply had her noted down as Mamselle. She had paid her rent regularly, and had remained in the house five weeks—that was all he knew about her. Had he ever seen her since? Not that he knew of—in fact, he shouldn't know her if he saw her—they were all pretty much alike, these young Frenchwomen. Did he know where she came from to his house—where she went from his house? Not he! he knew no more than what he had just told.

"What now?" asked Allerdyke as the three searchers paced dejectedly up the street. "This is doing no good—it's worse than the Hull affair. However, there's one thing suggests itself to me. Didn't you say," he went on, turning to Celia, "that you had some very good testimonials with this young woman? If so, and you've still got them, we might trace her in that way."