It appears Warner Bros. went on a little domain-shopping spree for its Batman: Arkham Asylum sequel. Domain digger Superannuation has unearthed over a dozen new registrations by the publisher that reference the Dark Knight or events in the first Arkham Asylum game.

Several of the domain names suggest a range of possible "Arkham" titles for the sequel, including: Arkham City, New Arkham, Rise of Arkham and City of Arkham. There's also one domain that references Warden Sharp and his run for mayor. Avoiding spoilers, if you completed the "Spirit of Arkham" quest line in the first critically acclaimed game, it would seem to be a possible springboard for events in the sequel. We've listed all the new domain names after the break.