Islebound: Emerald Edition is a special edition of the game with some altered components and rules. It's best to think of it as a variant of the game, rather than a 2nd edition. This edition removes the book resource from the original game and replaces it with emeralds. Emeralds have different uses than books. You collect them when visiting a player-owned town and when you taking over a town. Emeralds must be used to buy building cards, and they can also be used to perform special abilities, such as keeping pirates and serpents after combat!
Will it be the age of ashes, or the age of... not ashes? The fate of reality rests in the heroes' hands in the finale of the Age of Ashes adventure path for Pathfinder 2nd Edition, designed for 18th level characters!