From publisher blurb: Sometimes, all you need to have fun with a class for another few months is a few new ideas to tinker around with. Class Expansions is a series of lightweight supplements for The Pathfinder Roleplaying Game that takes a base class and offers alternative class features that, handily enough, each fit on one page or less. Following in this vein, Class Expansions: Alchemist Discoveries introduces 30 new alchemist discoveries, including a series of new mutually-exclusive mutagen discoveries that follow the same design rules as some rogue sneak attack talents or alchemist bomb discoveries.