Skyrim's first DLC expansion, Dawnguard, is now available for purchase on Xbox Live.
The add-on introduces a sizeable amount of new content to the RPG for 1600 Microsoft points (that's about £13.71), including the opportunity to join the Dawnguard, an order of Vampire hunters, or the bloodsuckers themselves.
The DLC also brings in a wealth of new skills and abilities. Vamps can transform into flying vampire lords, which is similar to becoming a werewolf. Naturally, you can also turn into a cloud of bats.
For a full breakdown of what's new in Dawnguard have a look over this Skyrim DLC preview.