This part of Kirkland Medical Center appeared quiet. Empty chairs, vacant receptionist desks. Three in the morning. Appointments done, just the odd job here and there for the ER docs. Lots of long, empty corridors for a child to wander at will.

They broke into what appeared to be a waiting area. D.D. glanced around, seeing half a dozen closed doors and little else. She heard running footsteps, then Alex and Phil burst in the area.

“Which way? Where?” D.D. asked. She was on the balls of her feet, ready for action.

“Think like a cat, think like a cat,” Danielle was muttering. “The imaging rooms! They’re small and dark, and sometimes still warm from the machines.” She pointed to a handful of doors, each bearing a number. “Go.”

D.D. grabbed the doorknob closest to herself as the others did the same. The first was locked; she went to the second. It opened and she dashed inside, to discover a dark cocoon. She flashed on the light, saw it was really two rooms. One with a table, and a smaller, glass-windowed chamber where no doubt a technician stood to man the imaging equipment. She checked both spaces. Nothing. She reappeared in the waiting area. Phil was exiting a room. Alex, too, then Danielle. Each was shaking his or her head.

More footsteps. Greg and Neil pounding down the corridor toward them.

“Other rooms?” D.D. asked Danielle.

“Sure,” the nurse said blankly. “It’s a whole level of rooms. I mean, janitorial closets, receptionist areas, offices. There are rooms and rooms and rooms.”

“All right. This is central station.” D.D. pointed where they stood. “We work from this area out, likes spokes on a wheel. Everyone, grab a room.”

They moved urgently now. The rooms were small, easily cleared. It took twelve minutes, then they returned to central station, eyeing one another nervously. The floor was quiet, just the distant twitches and hums of a large building that grumbled in its sleep.

Phil spoke up first. “Now what? I swear, we spoke to a janitor who saw her walking down this corridor. She had to be going somewhere.”

D.D. puzzled over that, chewing her bottom lip. This floor felt right. Dark, secluded, lots of little spaces. If you were going to hide in a hospital, this was the place to be.

And then …

She turned slowly, regarding the first room she had tried. The only locked door on an entire floor of unlocked rooms. And suddenly, just like that, she knew.

“Danielle,” she said quietly. “We’re going to need that key.”

The janitor supplied the master key. D.D. did the honors, already gloved, careful not to touch anything more than she had to.

The heavy wooden door swung open. She stepped in slowly, snapped on the light.