"I'm so glad you could come, my dear," the elderly woman said. "I know that you're going to solve this mystery which has been bothering Rosemary and me. I'm sorry not to be able to entertain you more auspiciously, but a haunted house hardly lends itself to gaiety."
The dainty, yet stately, Miss Flora swept toward a room which she referred to as the parlor. It was opposite the library. She sat down in a high-backed chair and asked everyone else to be seated.
"Mother," said Aunt Rosemary, "we don't have to be so formal with Nancy and Helen. I'm sure they'll understand that we've just been badly frightened." She turned toward the girls. "Something happened a little while ago that has made us very jittery."
"Yes," Miss Flora said. "A pearl necklace of mine was stolen!"
"You don't mean the lovely one that has been in the family so many years!" Helen cried out.
The two women nodded. Then Miss Flora said, "Oh, I probably was very foolish. It's my own fault. While I was in my room, I took the necklace from the hiding place where I usually keep it. The catch had not worked well the last time I wore the pearls and I wanted to examine it. While I was doing this, Rosemary called to me to come downstairs. The gardener was here and wanted to talk about some work. I put the necklace in my dresser drawer. When I returned ten minutes later the necklace wasn't there!"
"How dreadful!" said Nancy sympathetically. "Had anybody come into the house during that time?"
"Not to our knowledge," Aunt Rosemary replied. "Ever since we've had this ghost visiting us we've kept every door and window on the first floor locked all the time."
Nancy asked if the two women had gone out into the garden to speak to their helper. "Mother did," said Mrs. Hayes. "But I was in the kitchen the entire time. If anyone came in the back door, I certainly would have seen the person."
"Is there a back stairway to the second floor?" Nancy asked.
"Yes," Miss Flora answered. "But there are doors at both top and bottom and we keep them locked. No one could have gone up that way."
"Then anyone who came into the house had to go up by way of the front stairs?"
"Yes." Aunt Rosemary smiled a little. "But if anyone had, I would have noticed. You probably heard how those stairs creak when Mother came down. This can be avoided if you hug the wall, but practically no one knows that,"
"May I go upstairs and look around?" Nancy questioned.
"Of course, dear. And I'll show you and Helen to your room," Aunt Rosemary said.
The girls picked up their suitcases and followed the two women up the stairs. Nancy and Helen were given a large, quaint room at the front of the old house over the library. They quickly deposited their luggage, then Miss Flora led the way across the hall to her room, which was directly above the parlor. It was large and very attractive with its canopied mahogany bed and an old-fashioned candlewick spread. The dresser, dressing table, and chairs also were mahogany. Long chintz draperies hung at the windows.
An eerie feeling began to take possession of Nancy. She could almost feel the presence of a ghostly burglar on the premises. Though she tried to shake off the mood, it persisted. Finally she told herself that it was possible the thief was still around. If so, he must be hiding.
Against one wall stood a large walnut wardrobe. Helen saw Nancy gazing at it intently. She went over and whispered, "Do you think there might be someone inside?"
"Who knows?" Nancy replied in a low voice. "Let's find out!"
She walked across the room, and taking hold of the two knobs on the double doors, opened them wide.
CHAPTER IVStrange Music
THE ANXIOUS group stared inside the wardrobe. No one stood there. Dresses, suits, and coats hung in an orderly row.
Nancy took a step forward and began separating them. Someone, she thought, might be hiding behind the clothes. The others in the room held their breaths as she made a thorough search.
"No one here!" she finally announced, and a sigh of relief escaped the lips of Miss Flora and Aunt Rosemary.
The young sleuth said she would like to make a thorough inspection of all possible hiding places on the second floor. With Helen helping her, they went from room to room, opening wardrobe doors and looking under beds. They did not find the thief.
Nancy suggested that Miss Flora and Aunt Rosemary report the theft to the police, but the older woman shook her head. Mrs. Hayes, although she agreed this might be wise, added softly, "Mother just might be mistaken. She's a little forgetful at times about where she puts things."
With this possibility in mind, she and the girls looked in every drawer in the room, under the mattress and pillows, and even in the pockets of Miss Flora's clothes. The pearl necklace was not found. Nancy suggested that she and Helen try to find out how the thief had made his entrance.
Helen led the way outdoors. At once Nancy began to look for footprints. No tracks were visible on the front or back porches, or on any of the walks, which were made of finely crushed stone.
"We'll look in the soft earth beneath the windows," Nancy said. "Maybe the thief climbed in."
"But Aunt Rosemary said all the windows on the first floor are kept locked," Helen objected.
"No doubt," Nancy said. "But I think we should look for footprints just the same."
The girls went from window to window, but there were no footprints beneath any. Finally Nancy stopped and looked thoughtfully at the ivy on the walls.
"Do you think the thief climbed up to the second floor that way?" Helen asked her. "But there'd still be footprints on the ground."
Nancy said that the thief could have carried a plank with him, laid it down, and stepped from the walk to the wall of the house. "Then he could have climbed up the ivy and down again, and gotten back to the walk without leaving any footprints."
Once more Nancy went around the entire house, examining every bit of ivy which wound up from the foundation. Finally she said, "No, the thief didn't get into the house this way."
"Well, he certainly didn't fly in," said Helen. "So how did he enter?"
Nancy laughed. "If I could tell you that I'd have the mystery half solved."
She said that she would like to look around the grounds of Twin Elms. "It may give us a clue as to how the thief got into the house."
As they strolled along, Nancy kept a sharp lookout but saw nothing suspicious. At last they came to a half-crumbled brick walk laid out in an interesting crisscross pattern.
"Where does this walk lead?" Nancy asked.
"Well, I guess originally it went over to Riverview Manor, the next property," Helen replied. "I'll show you that mansion later. The first owner was a brother of the man who built this place."
Helen went on to say that Riverview Manor was a duplicate of Twin Elms mansion. The two brothers had been inseparable companions, but their sons who later lived there had had a violent quarrel and had become lifelong enemies.
"Riverview Manor has been sold several times during the years but has been vacant for a long time."
"You mean no one lives there now?" Nancy asked. As Helen nodded, she added with a laugh, "Then maybe that's the ghost's home!"
"In that case he really must be a ghost," said Helen lightly. "There's not a piece of furniture in the house."
The two girls returned to the Twin Elms mansion and reported their lack of success in picking up a clue to the intruder. Nancy, recalling that many Colonial houses had secret entrances and passageways, asked Miss Flora, "Do you know of any secret entrance to your home that the thief could use?"