after to-morrow morning. If you do not come aboard by that time, they are to go to one of the South American ports and remain until further orders. By this means your absence for an indefinite period will be explained. You will go to Nina San Croix in the disguise which you have always used, and from her to the yacht, and by this means step out of your real status and back into it without leaving traces. I will come here to-morrow evening and furnish you with everything that you shall need and give you full and exact instructions in every particular. These details you must execute with the greatest care, as they will be vitally essential to the success of my plan."
Through it all Walcott had been silent and motionless. Now he arose, and in his face there must have been some premonition of protest, for Mason stepped back and put out his hand. "Sir," he said, with brutal emphasis, "not a word. Remember that you are only the hand, and the hand does not think." Then he turned around abruptly and went out of the house.
III.
The place which Samuel Walcott had selected for the residence of Nina San Croix was far up in the northern suburb of New York. The place was very old. The lawn was large and ill-kept; the house, a square old-fashioned brick, was set far back from the street, and partly hidden by trees. Around it all was a rusty iron fence. The place had the air of genteel ruin, such as one finds in the Virginias.
On a Thursday of November, about three o'clock in the afternoon, a little man, driving a dray, stopped in the alley at the rear of the house. As he opened the back gate an old negro woman came down the steps from the kitchen and demanded to know what he wanted. The drayman asked if the lady of the house was in. The old negro answered that she was asleep at this hour and could not be seen.
"That is good," said the little man, "now there won't be any row. I brought up some cases of wine which she ordered from our house last week and which the Boss told me to deliver at once, but I forgot it until to-day. Just let me put it in the cellar now, Auntie, and don't say a word to the lady about it and she won't ever know that it was not brought up on time."
The drayman stopped, fished a silver dollar out of his pocket, and gave it to the old negro. "There now, Auntie," he said, "my job depends upon the lady not knowing about this wine; keep it mum."
"Dat's all right, honey," said the old servant, beaming like a May morning. "De cellar door is open, carry it all in and put it in de back part and nobody aint never going to know how long it has been in 'dar."
The old negro went back into the kitchen and the little man began to unload the dray. He carried in five wine cases and stowed them away in the back part of the cellar as the old woman had directed. Then, after having satisfied himself that no one was watching, he took from the dray two heavy paper sacks, presumably filled with flour, and a little bundle wrapped in an old newspaper; these he carefully hid behind the wine cases in the cellar. After a while he closed the door, climbed on his dray, and drove off down the alley.
About eight o'clock in the evening of the same day, a Mexican sailor dodged in the front gate and slipped down to the side of the house. He stopped by the window and tapped on it with his finger. In a moment a woman opened the door. She was tall, lithe, and splendidly proportioned, with a dark Spanish face and straight hair. The man stepped inside. The woman bolted the door and turned round.
"Ah," she said, smiling, "it is you, Senor? How good of you."
The man started. "Whom else did you expect?" he said quickly.
"Oh!" laughed the woman, "perhaps the Archbishop."
"Nina!" said the man, in a broken voice that expressed love, humility, and reproach. His face was white under the black sunburn.
For a moment the woman wavered. A shadow flitted over her eyes, then she stepped back. "No," she said, "not yet."
The man walked across to the fire, sank down in a chair, and covered his face with his hands. The woman stepped up noiselessly behind him and leaned over the chair. The man was either in great agony or else he was a superb actor, for the muscles of his neck twitched violently and his shoulders trembled.
"Oh," he muttered, as though echoing his thoughts, "I can't do it, I can't!"
The woman caught the words and leaped up as though some one had struck her in the face. She threw back her head. Her nostrils dilated and her eyes flashed.
"You can't do it!" she cried. "Then you do love her! You shall do it! Do you hear me? You shall do it! You killed him! You got rid of him! but you shall not get rid of me. I have the evidence, all of it. The Archbishop will have it to-morrow. They shall hang you! Do you hear me? They shall hang you!"
The woman's voice rose, it was loud and shrill. The man turned slowly round without looking up, and stretched out his arms toward the woman. She stopped and looked down at him. The fire glittered for a moment and then died out of her eyes, her bosom heaved and her lips began to tremble. With a cry she flung herself into his arms, caught him around the neck, and pressed his face up close against her cheek.
"Oh! Dick, Dick," she sobbed, "I do love you so! I can't live without you! Not another hour Dick! I do want you so much, so much, Dick!" The man shifted his right arm quickly, slipped a great Mexican knife out of his sleeve, and passed his fingers slowly up the woman's side until he felt the heart beat under his hand, then he raised the knife, gripped the handle tight, and drove the keen blade into the woman's bosom. The hot blood gushed out over his arm, and down on his leg. The body, warm and limp, slipped down in his arms. The man got up, pulled out the knife, and thrust it into a sheath at his belt, unbuttoned the dress, and slipped it off of the body. As he did this a bundle of papers dropped upon the floor; these he glanced at hastily and put into his pocket. Then he took the dead woman up in his arms, went out into the hall, and started to go up the stairway. The body was relaxed and heavy, and for that reason difficult to carry. He doubled it up into an awful heap, with the knees against the chin, and walked slowly and heavily up the stairs and out into the bath-room. There he laid the corpse down on the tiled floor. Then he opened the window, closed the shutters, and lighted the gas. The bath-room was small and contained an ordinary steel tub, porcelain-lined, standing near the window and raised about six inches above the floor. The sailor went over to the tub, pried up the metal rim of the outlet with his knife, removed it, and fitted into its place a porcelain disk which he took from his pocket; to this disk was attached a long platinum wire, the end of which he fastened on the outside of the tub. After he had done this he went back to the body, stripped off its clothing, put it down in the tub and began to dismember it with the great Mexican knife. The blade was strong and sharp as a razor. The man worked rapidly and with the greatest care.
When he had finally cut the body into as small pieces as possible, he replaced the knife in its sheath, washed his hands, and went out of the bath-room and down stairs to the lower hall. The sailor seemed perfectly familiar with the house. By a side door he passed into the cellar. There he lighted the gas, opened one of the wine cases, and, taking up all the bottles that he could conveniently carry, returned to the bath-room. There he poured the contents into the tub on the dismembered body, and then returned to the cellar with the empty bottles, which he replaced in the wine cases. This he continued to do until all the cases but one were emptied and the bath tub was more than half full of liquid. This liquid was sulphuric acid.
When the sailor returned to the cellar with the last empty wine bottles, he opened the fifth case, which really contained wine, took some of it out, and poured a little into each of the empty bottles in order to remove any possible odor of the sulphuric acid. Then he turned out the gas and brought up to the bath-room with him the two paper flour sacks and the little heavy bundle. These sacks were filled with nitrate of soda. He set them down by the door, opened the little bundle, and took out two long rubber tubes, each attached to a heavy gas burner, not unlike the ordinary burners of a small gas-stove. He fastened the tubes to two of the gas jets, put the burners under the tub, turned the gas on full, and lighted it. Then he threw into the tub the woman's clothing and the papers which he had found on her body, after which he took up the two heavy sacks of nitrate of