There were no longer marine guards in the corridor.  Trays, medications, and two patients to be prepared for surgery kept her busy the first two hours; she had only time to check the knob of the door to suite K-12.  It was locked, as was the door to the adjoining sitting room.  The door to the watch room on its other side was closed.  She considered sneaking in again to see Smith through the connecting sitting room, now that the guards were gone, but decided to postpone it; she was too busy.  Nevertheless she managed to keep a close check on everyone who came onto her floor.