"Lady Balscombe did not leave her house in Park Lane till after midnight, so that would not have given her time to be at Lord Calliston's chambers and have an interview with Desmond, therefore it cannot have been her. I wish I could find out the name of the Woman who saw Desmond, and I'd also like to know the name of the woman who saw Lady Balscombe on that night, and discover what was the exact time Lady Balscombe left the house--let me see." He took out his note-book, and wrote the following memoranda: 1. To find out name of woman who called at Calliston's chambers on Monday (night of murder) between eleven and twelve. This could only be proved by Myles Desmond himself, as Mrs. Povy asserted it was Lena Sarschine, and Desmond denied it; therefore there was a dead-lock--affirmation and denial. Memo.--To see Desmond and find out name of visitor. 2. To ascertain appearance and, if possible, name of woman who visited Lady Balscombe on night of murder, as it might possibly have some bearing on case. A servant in Lady Balscombe's house could probably furnish this information. Memo--To try and find out said servant. 3. To discover exact time Lady Balscombe left her house on Tuesday morning, also ascertain subsequent movements. This would also have to be discovered through a servant--as to finding out subsequent movements, discover, if possible, train she left London by, and what she did between time of leaving her house and leaving by train. Memo.--These discoveries must be left to future developments of case. 4. To find out what has become of missing dagger. Possibly this might be discovered in Desmond's possession. Mem.--Search his room--secretly--employ agent--say Flip. 5. To search out early life of Lena Sarschine! Might be discovered in a small measure from Lydia Fenny, who, being confidential maid, might possibly have gathered information from casual remarks. Mem.--To see Lydia Fenny. Having thus arranged his plan of action satisfactorily, Dowker turned his attention to Number four of his memoranda, and proceeded to tell Flip what he wanted him to do. "You see this?" asked Dowker, showing Flip the dagger he had abstracted from Cleopatra Villa. Flip intimated by a vigorous nod of his head that he did. "I've got an idea," explained Dowker smoothly, "that a dagger very similar to this is to be found in the possession of Mr. Myles Desmond, the gentleman you saw to-day, so I want you by some means to get into his rooms and find out if it's there." Flip screwed his face into a look of profound thought, and then smiled in a satisfied manner. "I'll do it, Guv'nor," he said, sagaciously. "How?" asked Dowker, curious to learn how this juvenile detective proposed to deal with the problem. "I'll doss on his doorstep to-night," said Flip, "and when he comes 'ome do a 'perish'--you knows"--in an explanatory tone--"say I'm dyin' for victuals--'e'll take me inside, and when I gits there you leave me alone, guv'nor, I'm fly!"