Well, there's a new (and pretty exciting-looking) Dracula movie (http://www.draculauntold.co.uk/) coming out in a month, so now is a pretty good time to revisit the original.

And yeah, castle, monsters, adventure doesn't narrow things down very much where children's literature is concerned. :-/ That said, an LJ-friend of mine, steepholm, is an academic specialising in children's literature, while many other friends are avid readers of it. So if you're able to say anything more at all here about what you remember (e.g. what the monsters were like, what happened on the adventures), someone in these parts may be able to help you.