It may have been something in the old woman's expression as she watched Captain Muller slowly tearing the paper that sent a thrill of excitement through Mr. Snyder. Something seemed to warn him of the approach of a psychological moment. He bent forward eagerly.
There was a strangled gasp, a thump, and onto the table from the captain's hands there fell a little harmonica. There was no mistaking the look on Muller's face now. His cheeks were like wax, and his eyes, so dull till then, blazed with a panic and horror which he could not repress. The glasses on the table rocked as he clutched at the cloth.
Mrs. Pickett spoke. "Why, Captain Muller, has it upset you? I thought that, as his best friend, the man who shared his room, you would value a memento of Captain Gunner. How fond you must have been of him for the sight of his harmonica to be such a shock."
The captain did not speak. He was staring fascinated at the thing on the table. Mrs. Pickett turned to Mr. Snyder. Her eyes, as they met his, held him entranced.
"Mr. Snyder, as a detective, you will be interested in a curious and very tragic affair which happened in this house a few days ago. One of my boarders, Captain Gunner, was found dead in his room. It was the room which he shared with Captain Muller. I am very proud of the reputation of my house, Mr. Snyder, and it was a blow to me that this should have happened. I applied to an agency for a detective, and they sent me a stupid boy, with nothing to recommend him except his belief in himself. He said that Captain Gunner had died by accident, killed by a snake which had come out of a crate of bananas. I knew better. I knew that Captain Gunner had been murdered. Are you listening, Captain Muller? This will interest you, as you were such a friend of his."
The captain did not answer. He was staring straight before him, as if he saw something invisible in eyes forever closed in death.
"Yesterday we found the body of a dog. It had been killed, as Captain Gunner had been, by the poison of a snake. The boy from the agency said that this was conclusive. He said that the snake had escaped from the room after killing Captain Gunner and had in turn killed the dog. I knew that to be impossible, for, if there had been a snake in that room it could not have made its escape."
Her eyes flashed, and became remorselessly accusing. "It was not a snake that killed Captain Gunner. It was a cat. Captain Gunner had a friend who hated him. One day, in opening a crate of bananas, this friend found a snake. He killed it, and extracted the poison. He knew Captain Gunner's habits. He knew that he played a harmonica. This man also had a cat. He knew that cats hated the sound of a harmonica. He had often seen this particular cat fly at Captain Gunner and scratch him when he played. He took the cat and covered its claws with the poison. And then he left it in the room with Captain Gunner. He knew what would happen."
Oakes and Mr. Snyder were on their feet. Captain Muller had not moved. He sat there, his fingers gripping the cloth. Mrs. Pickett rose and went to a closet. She unlocked the door. "Kitty!" she called. "Kitty! Kitty!"
A black cat ran swiftly out into the room. With a clatter and a crash of crockery and a ringing of glass the table heaved, rocked and overturned as Muller staggered to his feet. He threw up his hands as if to ward something off. A choking cry came from his lips. "Gott! Gott!"
Mrs. Pickett's voice rang through the room, cold and biting: "Captain Muller, you murdered Captain Gunner!"
The captain shuddered. Then mechanically he replied: "Gott! Yes, I killed him."
"You heard, Mr. Snyder," said Mrs. Pickett. "He has confessed before witnesses. Take him away."
Muller allowed himself to be moved toward the door. His arm in Mr. Snyder's grip felt limp. Mrs. Pickett stopped and took something from the debris on the floor. She rose, holding the harmonica.
"You are forgetting your souvenir, Captain Muller," she said.
MISUNDERSTOOD
The profession of Mr. James ("Spider") Buffin was pocket-picking. His hobby was revenge. James had no objection to letting the sun go down on his wrath. Indeed, it was after dark that he corrected his numerous enemies most satisfactorily. It was on a dark night, while he was settling a small score against one Kelly, a mere acquaintance, that he first fell foul of Constable Keating, whose beat took him through the regions which James most frequented.
James, having "laid for" Mr. Kelly, met him in a murky side-street down Clerkenwell way, and attended to his needs with a sand-bag.
It was here that Constable Keating first came prominently into his life. Just as James, with the satisfying feeling that his duty had been done, was preparing to depart, Officer Keating, who had been a distant spectator of the affair, charged up and seized him.
It was intolerable that he should interfere in a purely private falling-out between one gentleman and another, but there was nothing to be done. The policeman weighed close upon fourteen stone, and could have eaten Mr. Buffin. The latter, inwardly seething, went quietly, and in due season was stowed away at the Government's expense for the space of sixty days.
Physically, there is no doubt that his detention did him good. The regular hours and the substitution of bread and water for his wonted diet improved his health thirty per cent. It was mentally that he suffered. His was one of those just-as-good cheap-substitute minds, incapable of harbouring more than one idea at a time, and during those sixty days of quiet seclusion it was filled with an ever-growing resentment against Officer Keating. Every day, as he moved about his appointed tasks, he brooded on his wrongs. Every night was to him but the end of another day that kept him from settling down to the serious business of Revenge. To be haled to prison for correcting a private enemy with a sand-bag—that was what stung. In the privacy of his cell he dwelt unceasingly on the necessity for revenge. The thing began to take on to him the aspect almost of a Holy Mission, a sort of Crusade.
The days slipped by, bringing winter to Clerkenwell, and with it Mr. Buffin. He returned to his old haunts one Friday night, thin but in excellent condition. One of the first acquaintances he met was Officer Keating. The policeman, who had a good memory for faces, recognised him, and stopped.
"So you're out, young feller?" he said genially. When not in the active discharge of his professional duties the policeman was a kindly man. He bore Mr. Buffin no grudge.
"Um," said Mr. Buffin.
"Feeling fine, eh?"
"Um."
"Goin' round to see some of the chaps and pass them the time of day, I shouldn't wonder?"
"Um."
"Well, you keep clear of that lot down in Frith Street, young feller. They're no good. And if you get mixed up with them, first thing you know, you'll be in trouble again. And you want to keep out of that now."
"Um."
"If you never get into trouble," said the policeman sententiously, "you'll never have to get out of it."
"Um," said Mr. Buffin. If he had a fault as a conversationalist, it was a certain tendency to monotony, a certain lack of sparkle and variety in his small-talk.
Constable Keating, with a dignified but friendly wave of the hand, as one should say, "You have our leave to depart," went on his way; while Mr. Buffin, raging, shuffled off in the opposite direction, thinking as hard as his limited mental equipment would allow him.
His thoughts, which were many and confused, finally composed themselves into some order. He arrived at a definite conclusion, which was that if the great settlement was to be carried through successfully it must be done when the policeman was off duty. Till then he had pictured himself catching Officer Keating in an unguarded moment on his beat. This, he now saw, was out of the question. On his beat the policeman had no unguarded moments. There was a quiet alertness in his poise, a danger-signal in itself.