He needed to stretch unseen muscles.
The transition was smooth and he padded his way out of the bedroom on four clawed feet.
Bounding down the hall he stopped short on a rug and kneaded large claws into it for a few minutes.
He wandered down the staircase, tail flicking as he picked up the scent of 2 or 3 other pairs of feet.
He could also smell Brian, and he turned away from where the scent seemed to lead and began exploring the west side of the lower level.