You point to a semi-concealed door behind the small green dragon and it opens. "What's that?" You ask him. "It's a room I've carved out, for any new or special critters that I might find. Now it houses my Pernse dragon." he replies and shows you in.
He lights a glow and you can see that the room is an entirely rock room, no wood at all. He walks to the other side and lights another glow. You can now see a stone chair and an indent in the stone next to the chair.