The next adventure for Blizzard’s Hearthstone has been announced. Taking players to the legendary and mysterious tower of Karazhan, One Night in Karazhan will add 45 new cards to the game, spread across four wings of the adventure. The wings themselves will be available for 700 in-game gold, or US$6.99.

A special prologue wing will be available for free to all players and will reward them with two cards as a taster for the main adventure itself. Lost In Karazhan will be available from August 11.