The Shadowcallers of Nidal are some of the most feared spellcasters on
Golarion, known for their remorseless cruelty and ruthlessness. When the
newly minted Shadowcaller Isiem agrees to accompany his estranged
friend, Ascaros, on a journey to investigate his aunt's death and
reclaim her possessions, he finds himself face to face with a powerful
artifact of great interested to the pair's academy, the infamous Dusk
Hall of Pangolais. Faced with age-old curses, betrayal from within
Zon-Kuthon's dread ranks, and worse, Isiem may soon regret trading the
known dangers of the Dusk Hall for the unknowns of Nisroch.