The Dracula Dossier Bundle of Holding.

…Look, whatever the amount on the The Dracula Dossier Bundle of Holding (RPG: vampire spy mashup that features, go figure, Dracula) ends up being, just get the whole damn thing. Totally worth it. You should also consider buying a print copy of DRACULA UNREDACTED, which is… difficult to describe. But worth it to have in your hands as a book, or the mother of all in-game props.