We have reached the end of the road my fellow travelers as the final Wing of Hearthstone‘s (Free) Blackrock Mountain Adventure has just opened its gates and awaits your presence. As its name, Hidden Laboratory, reveals, this Wing holds the results of all kinds of unsavory experiments, so be prepared to be unpleasantly surprised. The Bosses you’ll be fighting against are Omnotron Defense System, Maloriak, Atramedes, and, of course, Nefarian himself. Unlike the earlier Wings, the Hidden Laboratory comes with only one Class Challenge, the Paladin.

We’ll soon be posting Guides to help you beat the Normal and Heroic bosses of this Wing using either expensive or free decks, so make sure you return to TouchArcade if you end up being Nefarian’s guinea pig one too many times.