Pathfinder U2

Undead: Undead are once-living creatures animated by spiritual or supernatural forces. They have darkvision. Undead have immunity to all mind-affecting effects (charms, compulsions, morale effects, patterns, and phantasms). They have immunity to bleed, death effects, disease, paralysis, poison, sleep effects, and stunning. Undead are not subject to nonlethal damage, ability drain, or energy drain. They are immune to damage to their physical ability scores, as well as to exhaustion and fatigue effects. They cannot heal damage on their own if they are unintelligent, although they can be healed. Negative energy (such as an inflict spell) can heal undead creatures. They may heal fast regardless of the creature’s intelligence. They have immunity to any effect that requires a Fortitude save (unless the effect also works on objects or is harmless). Undead are not at risk of death from massive damage, but are immediately destroyed when reduced to 0 hit points. They are not affe...

The heroes continued their exploration after resting. Secret Crypt.  The back wall of this niche, as well as the entrance into the Assembly Room itself, was hidden by secret doors. The heroes found the location  of both  hidden doors. Assembly Room.  Lanterns hang from hooks over three large tables scattered throughout this chamber. Two tables are covered with preserved human body parts stitched together with thick thread to partially form a pair of patchwork human corpses. Stools and small steel work trays covered in slender knives, clamps, hooks, saws, screws, needles, and other less identifiable tools surround each of the large tables. This is where the heroes encountered a lich. The lich sat on a stool at a worktable opposite from the entrance, stitching together pieces of one of the patchwork corpses. The lich was not initially looking for a fight. In fact, he was quite curious what had become of the outside world, and when the heroes arrived he bid them answer ...