Harpy, Imp, Medusa

From publisher blurb:

Since the release of the first bestiary, the first monster book, there have been those who asked - can I play something exotic, can I play a monster instead of a regular character?

In this release of the Monster Classes series, you have the opportunity to play as three different monstrous races - the harpy, imp, and medusa! As a member of these monster races, your experience playing in the Pathfinder Roleplaying Game is sure to be unique and filled with unexpected situations.

This book includes three monster classes - the harpy, imp, and medusa, along with the associated feats necessary to build interesting characters, that at the same time are true to the concept presented in the Bestiary.