Leaked images have revealed new details on The Curse of Naxxramas, the first expansion for Blizzard's collectable card battler Hearthstone: Heroes of Warcraft.
As expected, the content closely follows the Naxxramas dungeon found in World of Warcraft, with familiar foes such as Patchwerk, Gothik and Loatheb appearing as AI adversaries.
Their hero powers involve the abilities to summon skeletons and spiders to their aid.
Nine of Naxxramas' bosses have a class challenge after they're defeated in normal play - such as beating it using a specially-constructed deck. Achieve this and you'll earn a unique card.
30 new cards are expected in total within the expansion, which will heavily focus on the Deathrattle power.
When questioned about the images, Blizzard told Eurogamer: "We appreciate your checking in with us, but we don't comment on rumours or speculation".
At present, Naxxramas still holds a simple "summer" release date.