From the publisher's website:
Where Mystery Meets Adventure
Lorefinder puts you in the role of a brave adventurer in search of forbidden secrets and lost treasures. Uncover strange cults, solve baffling murders, or delve into the deepest dungeons and face their denizens – and, if you are both clever and lucky, return to tell the tale. Your fate is in your hands!
Lorefinder merges the action-oriented fantasy rules of The Pathfinder Roleplaying Game with the streamlined investigative focus of Robin D Law’s GUMSHOE (The Esoterrorists, Trail of Cthulhu, Ashen Stars). Bad luck might get you killed, but it won’t stop you finding the information you need to move ahead.
For GMs, there are concise, well-honed guidelines on creating mysteries for The Pathfinder Roleplaying Game.
The Lorefinder supplement contains:
-An adaptation of the GUMSHOE investigative rules for fantasy adventuring
-Character creation and conversion guidelines for use with Pathfinder
-Drives to bring you into the heart of the adventure
-New skills, spells and feats
-Guides for designing mysteries and campaigns
-At Slaughter Field, a sample Lorefinder scenario