@Ghostcat: Yes, I don't want to go to far in one shot and screw someone up when taking it more slowly would help. Especially in a non-combat area, and as a player I like to take it one step at a time.
As you enter the room, you see a dog lying on a rug, sleeping soundly. It appears at first to be a normal dog before you see the identifying marks of a krenshar
I didn't know quite how to describe it or I would have gone around. Unless your characters know about stuff like that they probably wouldn't be able to ID it right away.