He unlocked the lab door and held it so she could go by.

He went down the hall to the shower and saw that the lab door was shut.

She turned to face him at the lab door.

He takes an ax and tries to break down the lab door without success.

The lab door opened and two boys poked their heads in.

Peering at the end of the hallway, she could see the lab door.

"Some of the teeth used in the analysis, along with the keys to the lab door for scale."

Only an occasional light showed through the windows in the lab doors.

The lab door had closed behind him, which was some small comfort.

A moment later, he heard the lab door open.