A heavy bolt slid back inside the frame with a loud snap.

Marcus put in the brass key, grabbed the metal handle, and heaved the corrugated door up.

Inside was completely dark.

Marcus switched on a heavy black police flashlight and swept the bright beam over a stack of sealed cardboard boxes, a rolling clothes rack, and a gray metal filing cabinet tucked in the corner.

Dust danced in the yellow light.

The space was packed tight from wall to wall.