"There is no fear of that," said Diana gravely. "My father is insane more or less, but he is not a murderer. I am quite content to risk the trap suggested by that woman."

Lucian did not at once adopt the plan to net Wrent—whosoever he might be—invented by Lydia, and approved of by Diana. On the whole, he could not bring himself to believe that a weak-headed, foolish old creature like Vrain had masqueraded in Jersey Street as Wrent. Still there were certain suspicious incidents which fitted in very neatly with Ferruci's story. Mrs. Clear had stated that Vrain, when under her charge, escaped several times, and had remained away for several days, until brought back again by the Count. Again, the appearance of Wrent, as described by Rhoda, was precisely the same as the looks of Vrain when Lucian saw him in the Hampstead asylum; so it seemed that there might be some truth in the story.

"But it's impossible!" said Lucian to himself. "Vrain is half mad and incapable of conducting his own life, or arranging so cleverly to commit a crime. Also he had no money, and, had he lived in Jersey Street, would not have been able to pay Mrs. Bensusan. There is something more in the coincidence of this similarity of looks than meets the eye. I'll see Link and hear what he has to say on the subject. It's time he found out something."

The next day Lucian paid a visit to Link, but was not received very amiably by that gentleman, who proved to be in a somewhat bad temper. He was not altogether pleased with Lucian finding out more about the case than he had discovered himself, and also—to further ruffle his temper—the clever Lydia had given him the slip. He had called at her Mayfair house with a warrant for her arrest, only to find out that—having received timely warning from Ferruci's servant—she had fled. In vain the railway stations had been watched. Lydia, taking the hint given to her by Lucian, had baffled that peril by taking the Dover train at a station outside London.

Lucian heard what Link had to say on the subject, but did not reveal the fact that Lydia had paid a visit to Diana, or had gone to meet her father at Dover. He did not want to give the little woman up to justice, as he was beginning to believe her innocent; and that, in all truth, she had known nothing of the Ferruci-Wrent conspiracy.

Therefore, giving no information to Link as to the little woman's whereabouts, Denzil told—as coming from himself—his idea that Wrent might fall into a trap set for him in the Pimlico House by means of Mrs. Clear's cypher. Link listened to the tale attentively, and decided to adopt the idea.

"It is a good one," he admitted generously, "and I'm not jealous enough to cut off my nose to spite my face. You have had the better of me all through this case, Mr. Denzil, and we have had words over it; but I'll show you that I can appreciate your cleverness by adopting your plan."

"I am greatly obliged to you for your good opinion," said Lucian drily, for he saw with some humour that Link was only too anxious to benefit by the very cleverness of which he pretended to be so jealous. "And you will see Mrs. Clear?"

"Yes; I'll see her at once, and get her to invite Wrent to Pimlico by that cypher, with a threat that she will betray the whole plot if he does not come."

"I daresay he knows already that Mrs. Clear is a traitress?"