He had by this time arrived at the Guelph Hotel and sent up his card to Mr. Ellersby. The waiter soon returned with the information that Mr. Ellersby was in and would see him, so he went upstairs and was shown into a sitting-room. At one end near the window sat Spencer Ellersby in a comfortable armchair smoking a pipe and reading a French novel. A remarkably unpromising-looking bulldog lay at his feet and arose with an ominous growl as Dowker entered the room. "Lie down Pickles," said Ellersby to this amiable animal, who obeyed the command in a sulky manner. "Well, Mr. Dowker, what do you want to see me about?" "That case, sir," said Dowker, taking a seat. "Oh, of course," replied Ellersby, shrugging his shoulders, "I guessed as much. I thought I'd done with the whole affair at the inquest." "As far as it then went, sir," said the detective, quickly; "but I've found out a lot since that time." "Ah, indeed! The name of the assassin?" "Not yet, sir--I'll do that later on--but the name of the victim." "Yes?--and it is----?" "Lena Sarschine." "Never heard of her. Who is she, what is she, and where does she live?" "She was Lord Calliston's mistress," replied Dowker. "I think that answers all the other questions." "Hum! A cottage in St. John's Wood--gilded vice, and all the rest of it. And what was she doing in Jermyn Street that night?" "I don't know, sir. That's one of the things I've got to discover." "Well, what else have you found out, and how did you manage to acquire your information?" "That was easy enough," said? Dowker confidentially. "I'll just tell you all, sir, for I want you to give me some information." "Delighted--if I can." "As to the finding out, sir. The hat worn by the dead 'un had a ticket inside, showing it was made by Madame Rêne, of Regent Street. I went there, and found out it had been sold to a woman called Lydia Fenny, of Cleopatra Villa, St. John's Wood. I, thinking Lydia Fenny was the victim, went there and found that she was alive, and had lent the hat to her mistress last Monday night." "Curious thing for a maid to lend her mistress clothes," said Ellersby, smiling. "It's generally the reverse." "I think she did it for a disguise, sir," explained Dowker, "because Miss Sarschine went to Lord Calliston's chambers in Piccadilly." "What for?" "To get information concerning his elopement with Lady Balscombe." "The deuce!" said Ellersby in astonishment. "This is becoming interesting."