The map of the Fiery Sanctum misses a room description: just north to C17 (Freija Doorgan's room) there is a secret door to a room not described in the text of the HC. I think I'll use it as her secret study/bedroom (books and desk with documents about the dispersal collar)
The title for C17 is Freija Doorgan's Chambers (plural) so I guess that little room is intended to be included in there. But there's no Search DC for the door or separation of what's in one room as opposed to another, so yeah, have fun with it. Put a trap on the secret door or something, and be sure the big stuff is in there, not lying about in the bedroom.
Hey, thanks for the heads up. I probably never would have noticed that.