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Episode and Location Accquired Description Last known location
Episode 44:Fighting and Lightning A horrifying libation that staves off the madness. A dark foul substance distilled inside the rotting corpses of buried creatures by the Viscount Winger-Sticks Envoy.

Also, a single sip allows the drinker to experience visions of the dead. This liquid glows green when spirits/visions show themselves. The drinker takes 1d6 poison damage per sip taken and can roll a constitution saving throw to try to half the damage.

All party members had this in their possession in the year 278 after the war.