[ The door opens. There's no resistance, nothing like the defenses of the castle. That, at least, he knows to be deliberate. Walter wanted visitors. He thrived upon them. ]

There ought to be a staircase leading downward, at first.

[ They have maps of the place. One theoretical, made by Mathias based upon intelligence gathered from outside. The second is from Leon's journals at the hold, a working map made for himself when he explored it - more reliable but less complete. He nods when he sees the staircase - this place isn't living. Isn't rearranging itself the way Dracula's castle was known to be capable of. That, at least, is a relief. ]

Leon said there was- something down there. Didn't say what, he just didn't like it. Through here, there'll be corridors into the inner parts of the castle.