The two janitors finally left Klein's office and carefully closed the door, checking with the dark light of the UV-A torch that their fingerprints and any biological traces had disappeared.
After finding that they had successfully accomplished the mission, Faith and Layton quickly made their way to the other end of the corridor, precisely in the direction of the A-C inter-warehouse door.
Layton pulled out old Sam's ID tag and approached it to the door sensor.
*beep*bzz*
After the usual monotonic sound, the sliding door opened.
As soon as they entered the big warehouse, Faith walked up to the wall that was on the shelf full of freshly packed junk and exclaimed: "Well, the outer drain hatch is right down here! Come on, let's get rid of that stuff!"
He lowered himself towards it as the girl unlocked a red lever popping up on the wall, on which a 'open' writing followed by an arrow signaled the direction to open the hatch.