Madman

A deranged lunatic driven to drag any poor adventurer who crosses his path to insanity with his great and terrible revelations, the Madman poses very little danger in terms of direct damage. However, his Doomsay ability can hit the entire party for serious stress damage (especially at low light), and Accusation can also apply a debuff which increases a hero's incoming stress damage until the next time you camp, as well as a potent Horror to accompany it. It's best to eliminate him as soon as possible, before he can drive your whole party insane.

Strategy

 * Debuffs which reduce the Madman's high DODGE stat can come in handy. As with many other opponents, stunning him can buy you some extra time to finish him off, especially because his resistances are very low.
 * Accusation's debuff may not seem that dangerous, but it lasts until the next time you camp. This means that the next enemy capable of inflicting heavy stress damage (such as the Cultist Witch) will hit that much harder. However, it can be easily cleansed with Medicinal Herbs.
 * The Madman, like any enemy with stress-based attacks, tends to focus his abilities on heroes with high stress, who are most vulnerable to becoming afflicted. For each dungeon level, the chance of him using Accusation on a heavily stressed hero is 2x, 3x, and 4x, respectively.

Music Boxes

 * The Madman will always drop something for your party as a reward for defeating this rare enemy. The exact probability for the Madman to drop a trinket instead of a regular provision item is 1/6 (~17%), and this trinket can either be a very common, common, uncommon or Madman-exclusive one (Overture, Aria or Crescendo Box), each with the same 25% chance of being randomly picked. This works out to 0.17*0.25 = ~0.042 = about a 4% chance of a music box drop.

Only one of each music box can be in a player's inventory at once.

Abilities
Apprentice =

Veteran =

Champion =

All Areas

 * Cultist Acolyte
 * Cultist Brawler

Trivia

 * The music boxes the Madman drops are named after different keywords in music. An Aria is a long song that usually, but not always, accompanies a solo singer, though was originally any expressive melody. A Crescendo is a passage of music during which the volume gradually increases and in Italian literally translates to increasing. And an Overture is an orchestral score used at the beginning of an opera.