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Hastur the Unspeakable CR 21; XP 409,600 CE Great Old One of decadence, disorder, and nihilism Primary Sources Ambrose Bierce “Haita the Shepherd” and “An Inhabitant of Carcosa”; August Derleth, “The Return of Hastur” C U LT Domains Chaos, Evil, Rune, Void Subdomains Dark Tapestry, Language, Stars, Wards Favored Weapon rapier Symbol the Yellow Sign Temple manor houses, observatories, playhouses and theaters, standing stones on hilltops Worshipers decadent nobles, necromancers, nihilists, playwrights, those who have found the Yellow Sign Servitors byakhee, the King in Yellow, undead I N F L U E N C E S TA G E D C 27 Area 1-mile radius; Nucleus ft (always adjacent to viewer) AC 37; Saves +23; HP 400 Effects psychic assault, quantum reality, spells Escalation In order to advance to stage 2, Hastur must approach within 10 miles of the influenced area (this occurs automatically after 3d6 hours of the beginning of a stage influence) I N F L U E N C E S TA G E DC 30 CR 24; XP 1,228,800 Area 2-mile radius; Nucleus 10-ft square (always adjacent to viewer) AC 42; Saves +25; HP 520 Effects possession, psychic assault, quantum reality, spells Escalation In order to advance to stage 3, Hastur must approach within mile of the influenced area (this occurs automatically after 3d6 minutes of the beginning of a stage influence) I N F L U E N C E S TA G E D C 32 CR 27; XP 3,276,800 Area 4-mile radius; Nucleus 30-ft square (always adjacent to viewer) AC 45; Saves +28; HP 640 Effects devastating attack, possession, psychic assault, quantum reality, spells Escalation In order to advance to stage 4, Hastur must approach within 300 feet of the influenced area (this occurs automatically after 3d6 rounds of the beginning of a stage influence) I N F L U E N C E S TA G E D C 35 CR 30; XP 9,830,400 Area 16-mile radius; Nucleus 100-ft square (always adjacent to viewer) AC 48; Saves +31; HP 760 Effects destruction, devastating attack, possession, psychic assault, quantum reality, spells D E F E AT Combat Hastur can be defeated through damage, but in order to defeat it, each observer must defeat their own observation of Hastur that appears before them One cannot interact with a version of Hastur observed by someone else, but one can aid someone else indirectly against their observed Hastur (such as via healing damage or removing debilitating effects) Once all creatures in the area of influence defeat Hastur, the influence ends, provided at least one observer remains 246