He leaves the room and heads for the elevator, then inserts the key into the lock below the button on the panel. And it seems that this act calls the Hound, because he turns to hear it's roar. It seems angry this time.
Nervous, Kaleb turns the key quickly, as he does the button lights up a faded old yellow. Then he presses the button quickly and there is the heavy clicking of gears behind the wall, which is only contrasted by a new roar from the Hound in the distance.
-Come on... come on -Kaleb says impatiently, trembling a little.
At last, the elevator doors open, revealing it's interior. Kaleb enters without hesitation and there he finds that above the door is the floor counter, which lights up and the elevator doors begin to close. In the distance a whimper can be heard from the beast, which sounds like an angry wail.
Kaleb is relieved to see the doors close completely, and to feel the movement of the machine; he exhales a little and releases anguish.
Soon his gaze is fixed on the floor counter, which begins to move...
The little hand continues on it's way until finally, accompanied by a classic "PING!", it stops...