When the ringmaster of the Circus of Wayward Wonders is found murdered moments before the troupe's debut, daring circus performers must scramble to arrange a successful show and find the killer. A trail of clues thrusts these heroes into a web of simmering hatred and scheming fiends and a far-reaching plot to eradicate life across the Starstone Isles! The Extinction Curse Adventure Path kicks off with "The Show Must Go On," a complete adventure for 1st- to 4th-level characters.