From the publisher's website:
Know the unknown as you explore the lore and inner workings of the Inner Sea’s most elusive creatures in Pathfinder Campaign Setting: Mystery Monsters Revisited!
Unravel the myths behind legendary creatures inspired by real-world monsters, like the blood-sucking chupacabra, the larger-than-life sasquatch, and the mountain-dwelling yeti—and discover how they fit into the award-winning Pathfinder campaign setting alongside such infamous favorites as the equine Sandpoint Devil and disaster-heralding mothman. Each mystery monster includes examples of its misdeeds, evidence the fiend leaves in its wake, and a sample stat block of an especially nefarious version of the beast.
In a world where little is as it seems and the monsters are always one step ahead of their pursuers, get the upper hand with Pathfinder Campaign Setting: Mystery Monsters Revisited!