(3) The handkerchief and the letters point to a woman in the case, although this was not brought out at the trial. Is it possible that woman is Mrs. H.?
Rolfe realised that the chief pieces of the puzzle were before him, but the difficulty was to put them together. He felt sure there was a connection between these facts, which, if brought to light, would solve the Riversbrook mystery. Without knowing it, he had been so influenced by Crewe's analysis of the case that he had practically given up the idea that Birchill had anything to do with the murder. His real reason for going to Hill's shop that morning was to try and extract something from Hill which might put him on the track of the actual murderer. He believed Hill knew more than he had divulged. Hill, before his disappearance, had placed in his hands an important clue, if he only knew how to follow it up. That incident of the missing letters must have some bearing on the case, if he could only elucidate it.
Should he disclose to Chippenfield Hill's story of the missing letters? Rolfe dismissed the idea as soon as it crossed his mind. He knew his superior officer sufficiently well to understand that he would be very angry to learn that he had been deceived by Mrs. Holymead, and, as she was outside the range of his anger, he would bear a grudge against his junior officer for discovering the deception which had been practised on him, and do all he could to block his promotion in Scotland Yard in consequence. Apart from that, he could offer Chippenfield no excuse for not having told him before.
Should he consult Crewe?
Rolfe dismissed that thought also, but more reluctantly. Hang it all, it was too humiliating for an accredited officer of Scotland Yard to consult a private detective! Rolfe had acquired an unwilling respect for Crewe's abilities during the course of the investigations into the Riversbrook case, but he retained all the intolerance which regular members of the detective force feel for the private detectives who poach on their preserves. Rolfe's professional jealousy was intensified in Crewe's case because of the brilliant successes Crewe had achieved during his career at the expense of the reputation of Scotland Yard. Rolfe had an instinctive feeling that Crewe's mind was of finer quality than his own, and would see light where he only groped in darkness. If Crewe had been his superior officer in Scotland Yard, Rolfe would have gone to him unhesitatingly and profited by his keener vision, but he could not do so in their existing relative positions. He ransacked his brain for some other course.
After long consideration, Rolfe decided to go and see Mrs. Holymead and question her about the packet of letters which Hill declared she had removed from Riversbrook after the murder. He realised that this was rather a risky course to pursue, for Mrs. Holymead was highly placed and could do him much harm if she got her husband to use his influence at the Home Office, for then he would have to admit that he had gone to her without the knowledge of his superior officer, on the statement of a discredited servant who had arranged a burglary in his master's house the night he was murdered. Nevertheless, Rolfe decided to take the risk. The chance of getting somewhere nearer the solution of the Riversbrook mystery was worth it, and what a feather in his cap it would be if he solved the mystery! He was convinced that Chippenfield had shut out important light on the mystery by doggedly insisting, in order to buttress up his case against Birchill, that the piece of handkerchief which had been found in the dead man's hand was a portion of a handkerchief which had belonged to the girl Fanning, and had been brought by Birchill from the Westminster flat on the night of the murder. It was more likely, in view of Hill's story of the letters, that the handkerchief belonged to Mrs. Holymead. Rolfe had not made up his mind that Mrs. Holymead had committed the murder, but he was convinced that she and her letters had some connection with the baffling crime, and he determined to try and pierce the mystery by questioning her. Having arrived at this decision, he replaced his notebook in his coat pocket, knocked the ashes out of his pipe, and went to bed.
CHAPTER XXI
Rolfe went to Hyde Park next day and walked from the Tube station to Holymead's house at Princes Gate. The servant who answered his ring informed him, in reply to his question, that Mrs. Holymead was "Not at home."
"Do you know when she will be home?" persisted Rolfe, forestalling an evident desire on the servant's part to shut the door in his face.
The man looked at Rolfe doubtfully. Well-trained English servant though he was, and used to summing up strangers at a glance, he could not quite make out who Rolfe might be. But before he could come to a decision on the point a feminine voice behind him said: