From The Grey House:
The stairs were well built, with reinforced walls on both sides. They were soundproofed, as was the door. At the bottom of the stairs was another locked door. After checking the monitor above him, Vincent punched in a code and the metal door before him slid open. He stepped into the closet sized chamber, and the door closed behind him. He checked the next monitor as the large fans above played with his hair. All was normal therefore he typed in his code into yet another keypad, and the second metal door slid open.
