Tierney handed over the key to the padlock, and with a cheery "So long," started off.

Morgan, left to himself, began a careful inspection of the apartment. Although a.s.sured that the apartment had been unoccupied, his first act was to discover, if possible, any signs of recent habitation. Convinced by the blood spot that the princ.i.p.al part of whatever had happened had taken place in the front room, he decided to leave that room until the last. Running all the shades to the top of the windows as he pa.s.sed from the front to the rear of the apartment, Morgan made the place as light as possible. He began his examination with the kitchen. The fastenings on the windows were closed, and the undisturbed condition of the dust indicated that they had not been touched for a long period. A careful inspection of the gla.s.s and woodwork showed no finger marks or any attempt to open the catches. The bolt on the back door was unfastened, but as the report stated that the police had found this bolt in place, it was obvious that it had simply been left open by the police. Morgan carefully scrutinized the condition of the bolt. After pushing it back into place the difference in brightness of the protected and unprotected parts convinced him that the bolt had been closed for some time.

He also noted that the key was missing from the lock. However, this fact had been referred to in the report, and it could make little difference if the bolt itself had been fastened. As a matter of fact, during his search of the pantry, he discovered the key on top of the ice box. A layer of dust indicated that the key had not been touched for a long time. His thorough investigation of the pantry revealed no evidence of recent use. The ice box was dry as a bone, with the musty smell of long disuse. A touch of the finger on various dishes and pieces of gla.s.sware showed that these also were covered with a film of dust.

Before leaving the kitchen, Morgan glanced into the sink, to ascertain if, as often happens, the murderer had washed his hands there. There was a reddish stain about the outlet, but as Morgan found this covered with dust he surmised that a long time had elapsed since any water had been run in the sink. This stain was presumably the rust which usually gathers in a long unused sink or basin.

The small maid's room off the kitchen had certainly not been in use.

Only the bare mattress was on the bed, and Morgan noticed that as his own feet left imprints in the dust on the floor, it was not likely that anyone else could have been in the room without leaving similar traces.

Next he thoroughly searched the dining room. As this room usually seems to be the favorite gathering point, both for the occupants of a house and unbidden prowlers, Morgan's keen eyes examined every detail of the floor and furnishings, including the drawers of the sideboard. He immediately noticed that two of the chairs were standing close to the table, while two others were moved slightly back from the table as if people had been sitting in them. On the floor under one of these chairs he found a few spots of cigarette ashes. To Morgan's quick mind this carried a mental picture. Of course, the police who had been in the apartment the night before might have accidentally or intentionally moved the chairs, but he was quite sure that under the circ.u.mstances not one of them would have sat down to smoke a cigarette. At some time quite recently, therefore, somebody, probably two persons, had sat at this dining room table while conversing, or waiting for something.

This was further confirmed when Morgan, bending his knees and lowering his body so as to bring his eyes on a level with the table, studied the top in the reflected light. He saw that the dust on the table top had been disturbed in front of the two chairs.

Furthermore, he discovered that the person who had not been smoking had evidently rested a pair of clasped and sweaty hands on the table top, as two parallel, greasy marks, made by the sides of the hands, showed quite plainly. To Morgan, clasped and sweaty hands indicated a possible state of nervousness. Either this had been the victim or the chief plotter.

The dining room revealed nothing further to Morgan, but he felt that he had made some progress in establishing the fact that at least two people had quite recently been in this supposedly unoccupied apartment.

Pa.s.sing through the entrance hall, Morgan then examined the main bedroom, which opened off of it. The bed had been dismantled, as in the maid's room. An examination of the clothes closet, and the drawers of the dresser and a chiffonier, showed that the room was commonly occupied by a man and a woman. Everything quite obviously belonged to the regular tenant. Morgan could find nothing of a suspicious nature, although he had particularly looked for correspondence which might in some indefinite way connect this tenant with the happenings of the night before.

The bathroom was visited next. Outside of the usual toilet articles and harmless medical "first aids" in the cabinet, the room was bare.

The final step was a close examination of the front room. Here the blood spot stood out dark and forbidding in the light of the afternoon sun. Beyond the fact that the shot had taken effect, it told nothing. Morgan stood in thought with his eyes resting upon the brick fireplace. Suddenly the descending sun threw its rays farther into the room and rested on a bright spot at the side of the fireplace. It looked odd to Morgan and he approached it. What he found was a flattened bullet, which had been held in place by slightly embedding itself in the rough surface of the brick. As evidence it had small value outside of confirming the fact that a shot had been actually fired in this apartment.

Finding nothing else with a bearing on the case, Morgan started to leave. At the doorway to the entrance hall, he stopped and turned to take one last look around the room in the hope that something might suggest itself. As he stood making this last survey, his eye caught a faint point of light under a cabinet in a corner. Instantly he returned to the room, and stooping down, ran his hand under the cabinet. His fingers seized on a small object, which proved to be a gold cuff b.u.t.ton. As he turned it over in his hand he found the initial "M" deeply engraved in the heavy gold.

Remembering that he had learned from the report in his pocket that the name of the tenant of this apartment was Ames, this discovery immediately a.s.sumed great importance, so Morgan carefully placed the cuff b.u.t.ton in a vest pocket.

Encouraged by his find, Morgan made another careful examination of the room. The flattened bullet and the cuff b.u.t.ton, revealed by friendly rays of sunlight, seemed to be all that he could find.

CHAPTER IV

THE APARTMENT ACROSS THE HALL

After replacing the padlock and snapping it closed, Morgan pressed the electric b.u.t.ton of the apartment across the hall. Footsteps sounded in immediate response, and the next moment the door was furtively opened. Morgan, who by that time was leaning carelessly against the jamb, quietly moved one foot forward into the opening.

Although the light in the hallway was dim he could see that the woman who stood there was young and remarkably pretty. Removing his hat, he asked politely, "Are you the tenant here?"

"Yes," came in a soft but nervous voice.

"May I come in and talk with you a few minutes?" inquired Morgan.

"What is it you want?" the girl inquired.

Morgan threw back his coat and disclosed his badge. "I am a city detective, and I would like a few words with you about this affair across the hall."

"What affair is that?" asked the girl.

Morgan smiled. "Didn't you know there was some trouble across the hall last night?"

"No," she returned. "I retired early and have heard nothing about it."

Morgan was at a loss for a moment. The girl was not of the type that one would a.s.sociate with persons of a criminal sort. Her replies had been given in a tone of voice so candid and wondering that it hardly seemed possible she could be acting. Whatever the situation, however, Morgan wanted to get inside this apartment and study the girl more closely.

"Well, I'll tell you all about it," he said, gently, "if you'll let me come in for a moment or two."

"I know nothing about it," she maintained, with a touch of irritation in her voice, and Morgan's foot signaled to him that she was attempting to close the door.

Morgan never liked to be rough in his methods. He hesitated over forcing himself into the presence of this young woman, and yet he now had an impression that an interview with her was imperative.

There was a slight pause, as he ran over in his mind some way to gain his entrance without force.

"Do you know Mr. Marsh downstairs?" he inquired, suddenly, his eyes keeping a keen watch on her face.

"I do not know any of the tenants in the building."

"That's strange," said Morgan, thoughtfully. "I was just talking with Mr. Marsh, and he told me that you knew all about the trouble last night. He suggested that if I would come and see you I could get just the information I wanted."

"I don't know this Mr. Marsh, and I can't understand why he should make such a statement." Surprise was apparent in her voice.

Morgan was quite sure that her surprise was genuine. At the same time his remarks had just the effect he had hoped they would. It brought a new element into the matter and added to the girl's natural curiosity. She opened the door wider, and nodding toward the front room, said, "Step in and tell me what you wish to know."

The room into which Morgan entered was a counterpart of the one across the hall, though as he rapidly observed the furnishings, he was impressed with the greater taste displayed and the homelike atmosphere. A piece of embroidery, on which she had evidently been working, lay on the arm of a chair near the window.

Conjecturing that she would resume her seat in this chair, Morgan seated himself where he could keep his back to the window, while the girl whom he was about to question would directly face the full light. Morgan's guess was correct. The girl went directly to the chair she had left to answer his ring, and taking up her embroidery, picked nervously at its edges, meanwhile watching Morgan expectantly.

Surmising that a direct attempt to question her at once might defeat his purpose, Morgan immediately broke into an account of the previous night's occurrence. As he brought out the various details of what was reported to have taken place, he slyly watched her face.

At the end of his recital, he felt convinced that what he told the girl had previously been unknown to her. Moreover, Morgan became sensible of a growing feeling of interest and confidence in the girl. Her sweetness seemed so genuine, her dark blue eyes so frank and honest in the straightforward way they met his.

"It seems very strange that I heard none of the excitement,"

remarked the girl, when Morgan had finished his story. "I had a rather busy day yesterday with my studies and retired early."

Morgan had decided upon his line of questioning while relating the incidents of the night before.

"May I ask your name?"

"Certainly," she replied. "My name is Atwood."

Morgan, having noticed the absence of a wedding ring, a.s.sumed that she was unmarried. Therefore, he said, "Is your mother at home, Miss Atwood?"

A shade of sadness pa.s.sed over her face. "My mother died some months ago," she replied.

"I am sorry. I know what it is to have a good mother," sympathized Morgan. Then he inquired, "Perhaps your father heard the disturbance?"

"Oh no," she replied. "My father is away."

"He travels?"