

The item will be in a patch of lightly glowing violet mushrooms, when the mushroom patch is clicked the patch will make a sound like an opening chest. Enemies should respawn, indicating the level has been reset, and you may find the mushroom. To do this, leave game, then click "Resume Game". The mushroom is rare and you may need to create new sessions multiple times before finding it. One way to farm for this is to load a later quest ( A Shattered Crown quest) in Act I and take the Cathedral Gardens Waypoint then proceed through Leoric's Passage to Cathedral Level 1. It can be found on Level 1 in the Cathedral (Normal difficulty). The Black Mushroom is an item used to craft the Staff of Herding, which can be used to gain access to Whimsyshire.

Black mushroom patch (left), the black mushroom as an item (right)
