Strange doings in the Sultan's charnel house... Lo! The corpse of poor, departed Scholar Zubayr, washed up on the shores of the River of Sand, lies in the charnel house...destined to become dinner for a cult of cannibals. Though distasteful in the extreme, this isn't your concern-except that Princess Karima Gamila, the most beautiful gnoll in Per-Bastet, has begged you to rescue her friend's body and help discover his fate. Still unmoved to action? Know then, adventurer, that the Scholar was hot on the trail of lost treasure! If you can claim his body from the cult and decipher the clues he left behind, long-buried riches and powerful magic might be yours. But nothing is simple in this city of dark wonders: others converge on the charnel house in pursuit of wealth, vengeance, or both. Can you out-fight and outwit vile cultists, undead catfolk, a cunning werecrocodile gnoll, and the deadly secrets that lie buried beneath the River of Sand? Grimalkin is a Level 3-5 Dungeons & Dragons 5th Edition compatible adventure. Play it as the thrilling sequel to Cat and Mouse, or as a standalone treasure hunt!