Mmm… Tastes Like Sanity

You are given one small, untreated braincap mushroom. When consumed or administered to someone else as an action, the mushroom acts as a greater restoration, but only as it pertains to reducing the recipient's madness level to 0. The braincap mushrooms are potent,  however, and if you consume more than one per adventure, you immediately gain 1d4 levels of Madness (no saving throw). Cross this story reward off of your adventure log when used.