The corridor light at the far end of the Memory Recovery Unit flickered once, then steadied.
Lena Orrell did not look up. Her pen moved across the patient file in short, deliberate strokes, correcting a dosage the attending physician had entered incorrectly. The error was minor. She noted it anyway.
The file belonged to a sixty-three-year-old woman named Ruth Halstrom, who had arrived three weeks earlier unable to remember her daughter's wedding. Lena had spent seven sessions reconstructing what could be verified: the venue, the music, the blue silk dress preserved in a garment bag at the back of a closet. Mrs. Halstrom now remembered standing beneath strings of white lights while her daughter danced.
Whether she remembered the wedding or Lena's reconstruction of it was a distinction neither of them could prove.
Lena closed the file and squared it with the stack to her left.
Everything on her desk had a place. The files met at clean right angles. Her pen rested parallel to the edge of the blotter. An empty coffee cup sat on a small ceramic coaster glazed an uneven blue. Lena had made it as a child, or believed she had. One corner held the shallow crescent of a thumbnail pressed into wet clay.
She checked her watch. Eleven forty-two.
Time for the late rounds.
The hallway outside her office was quiet. Half the lights had been dimmed for the night shift, a concession to patients who slept poorly and those who did not sleep at all. Lena walked with the even, unhurried stride of someone who had traveled the same corridor thousands of times. Her shoes made a regular sound on the linoleum: click at the heel, whisper at the toe.
At the nurses' station, Evelyn Okonkwo looked up from a monitor.
"You're still here," she said.
"So are you."
"I'm scheduled to be."
Lena glanced at the clock above the medication cabinet. "Nine minutes."
Okonkwo smiled without warmth. She had worked nights on the unit for six years and had long ago stopped mistaking Lena's precision for humor. "Halstrom asked for you. She says the memory changed again."
"Changed how?"
"The groom isn't wearing the same tie."
Lena considered this. "I'll see her in the morning."
She continued toward the observation rooms.
Then the sound came.
Not a voice at first. Something lower and rougher: bare skin dragging across tile, multiplied several times. A door opening too quickly. A security radio breaking into static and cutting off in the middle of a word.
Lena stopped.
The commotion was coming from the main entrance, around the corner and down the short flight of stairs connecting the intake lobby to the ground-floor corridor. A guard spoke in the careful tone used for frightened people and dangerous animals.
"Slow down. All of you. Just stop where you are."
Lena reached the stairs.
Six people stood in the intake lobby.
They were barefoot. Their soles were black with grime, and several feet were marked by small cuts that had bled and dried. They wore ordinary clothing: jeans, a gray sweatshirt, a wrinkled dress, a button-down shirt with one side of the collar folded inward. Nothing connected them except their silence and the white sheets of paper held against their chests.
They did not look at one another. They did not look at the guard. They faced different directions, their eyes fixed on separate points in the room, as if each had awakened inside a place assembled from incomplete instructions.
The automatic doors had already closed behind them.
Reyes, the evening guard, turned when he saw Lena. Relief crossed his face before he suppressed it.
"Dr. Orrell. They just came in."
"From where?"
"I don't know."
"You watched them enter."
Reyes looked toward the glass doors. "I watched the doors open."
It was not an answer. His expression told her he knew that.
Lena descended the stairs.
The youngest of the six was a woman in her early twenties with pale eyes and dark hair cut unevenly at her jaw. Blood still gathered along a gash in the arch of her left foot. She held her paper so tightly that the upper edge had begun to curl.
Lena stopped several feet away.
"I'm Dr. Orrell. You're at St. Arden Hospital. Can you tell me your name?"
Lena waited through the silence that followed. Silence was useful in an interview. People rushed to fill it, and what they chose often mattered more than an answer dragged from them. The woman did not rush. She watched Lena's face as if comparing it with a version stored elsewhere.
The room smelled of antiseptic and rain carried in on clothing. Water had dried in a dark crescent beneath the woman's chair, although the night outside was clear. Lena noticed the mark, recorded it mentally, and did not look down again. Attention could become suggestion. Suggestion could become memory.
"Do you know what city you're in?"
"Greyhaven." The answer came quickly. "But not this Greyhaven."
Lena kept her expression neutral. "What is different?"
The woman glanced toward the observation glass. "The hospital used to have another wing. There was a courtyard with a dead tree in the middle. Children tied red string to it when they wanted somebody to remember them."
St. Arden had never had a courtyard. Lena had worked there for eleven years and had reviewed plans dating to 1938. Yet she could see the tree as the woman described it: bare branches, wet stone, red threads moving in wind. The image arrived with the false familiarity of a childhood photograph.
She wrote COURTYARD / RED STRING on the intake sheet. Her handwriting leaned farther right than usual.
"Who are you afraid will forget you?" Lena asked.
For the first time, the woman looked frightened. "You already did."
The young woman stared at the wall behind Lena.
"Do you know where you were before you came here?"
Her gaze moved. Not toward Lena, but toward the stairwell above her.
"Is someone else coming?" Lena asked.
The woman lowered her eyes. Her lips parted, but no sound came.
Lena indicated the paper. "May I see what you're holding?"
The woman's fingers contracted.
"I won't take it from you. Just turn it around."
For several seconds, nothing happened. Then the woman rotated the sheet.
The drawing was crude, rendered in pencil on standard printer paper. A long central corridor turned sharply at its far end. Rooms opened from both sides. Each was empty except for a small rectangle that might have represented a bed, a desk, or a door within a door. At the center was a circular chamber divided by thirteen lines.
One line was darker than the others.
Beneath the circle, someone had written a single word in cramped block letters.
REMEMBER.
Lena leaned closer.
The drawing had no scale, but the structure was unmistakable. It was a floor plan. A place recalled imperfectly but urgently, the pencil driven hard enough to score the paper.
A sensation gathered behind her sternum. Not recognition. The hollow left when recognition had been removed.
She straightened and looked at the others.
"Show me your papers."
The middle-aged man nearest the doors responded first. He turned his drawing around. Then the woman beside him. One after another, the strangers revealed what they were carrying.
Six floor plans.
The same corridor. The same rooms. The same central circle crossed by thirteen lines. The same word written beneath it.
The handwriting was identical.
Lena moved from one drawing to the next. On the fourth sheet, the turn in the corridor had been retraced until the paper was nearly torn. On the fifth, a gray fingerprint marked the circular chamber. The sixth was stained by something pale and rust-colored.
Blood, Lena thought.
Or old water.
"Where did you get these?"
No one answered.
She looked at Reyes. "How long have they been inside?"
"Maybe two minutes."
"Did any of them speak?"
"One did. I couldn't understand her."
The young woman's eyes sharpened. For the first time, she looked directly at Lena.
Defiance cut through the confusion in her face. It lasted only a moment, but it changed Lena's assessment. The woman was disoriented, frightened, and in pain. She was not absent.
"Evelyn," Lena called.
Okonkwo appeared at the top of the stairs. She took in the bare feet, the drawings, and the blood with one sweep of her eyes.
"We need six intake assessments," Lena said. "Neurological observations, toxicology, and treatment for their feet. Separate rooms if we have them."
"We have three observation rooms."
"Pairs, then. Keep the doors open and maintain sightlines."
Okonkwo came down the stairs, speaking softly as she approached the group. She offered the young woman a wheelchair. The woman refused it with a small movement of her head.
"Can you walk?" Okonkwo asked.
The woman looked at Lena.
"Mara," she said.
Her voice was dry, as though she had not used it in days.
"Is that your name?" Lena asked.
The woman's mouth tightened.
"Mara Venn."
Okonkwo repeated the name and asked Mara to sit. This time she complied. When Okonkwo reached for the injured foot, Mara flinched but did not pull away.
The other five followed without resistance. They moved toward the intake corridor in a loose line, their steps producing the same soft drag across the tile. None released a drawing.
Mara went last.
As her wheelchair passed, she reached out and caught Lena by the wrist.
The contact was startlingly cold.
Lena looked down at Mara's hand. A narrow scar crossed the base of her thumb. Lena knew the scar. She knew how it had happened: a broken drinking glass, a kitchen sink, blood running into soapy water.
The memory vanished before she could see whose hand had been cut.
Mara's grip tightened.
"There were thirteen," she whispered.
Lena looked at the six strangers being led down the corridor. "Thirteen what?"
Mara's pale eyes held hers.
"Memories."
Okonkwo touched Mara's shoulder. The young woman released Lena and allowed herself to be taken away.
The lobby became quiet again.
Lena remained beside the stairs, aware of the cool band Mara's fingers had left around her wrist. The automatic doors reflected an empty entrance. Beyond the glass, the walkway extended beneath the security lights toward the street.
No footprints crossed the wet concrete.
Reyes shifted beside her. "What do you think happened to them?"
"I don't know yet."
The answer was accurate. She disliked it anyway.
Something white rested beneath the chair Mara had refused.
Lena bent and picked it up.
Another sheet of printer paper.
At first she thought it was a seventh copy of the floor plan. Then she saw that this drawing was different. It showed an elevator panel with buttons arranged in two columns. The numbers climbed from one to twelve and then continued with fourteen.
Between twelve and fourteen was a blank circle.
A dark fingerprint filled its center.
At the bottom of the page, in the same cramped handwriting as the others, someone had written:
DR. LENA ORRELL
Below her name was a time.
THURSDAY, 2:17 A.M.
Lena checked her watch.
It was Monday night.
She folded the drawing once and slipped it into her coat pocket.
"Did they know you?" Reyes asked.
Lena looked toward the intake corridor. The six strangers had disappeared around the far corner, but she could still hear their bare feet moving through the hospital's quiet dark.
"No," she said.
Then she returned to her office to find out why they did.