Gaze through the gate! Paranormal adventure abounds when an ancient curse at long last lifts from the River Kingdom of Sevenarches. The heroes trek into the ancient forest realm in search of answers, but first they find violent druids, wicked fey hunters, and paranoid townsfolk. Behind it all is an enigmatic bogeyman who pulls the strings from a coterminous plane of spindly shadows. Can the characters unravel the schemes of Kaneepo the Slim? How does the fatal obnubilate curse relate to their missing memories? And what awaits them on the other side of the Seventh Arch? There's just one way to find out!

"The Seventh Arch" is a Pathfinder adventure for four 1st-level characters. This adventure begins the Gatewalkers Adventure Path, a three-part monthly campaign in which a team of paranormal investigators unravel the mystery behind a mass amnesic episode which left them with lost memories and strange powers. This adventure also includes a gazetteer of adventure sites on the alien world of Castrovel, the Green Planet; new rules options perfect for paranormalist adventurers; and strange new creatures to befriend or bedevil your players.

Each monthly full-color softcover Pathfinder Adventure Path volume contains an in-depth adventure scenario, stats for several new monsters, and support articles meant to give Game Masters additional material to expand their campaign. Pathfinder Adventure Path volumes use the Open Game License and work with both the Pathfinder RPG and the world's oldest fantasy RPG.