Trouble rumbles in the Darklands beneath the world’s surface! Magic capable of astonishing transformations may just have fallen into sinister hands, with mysterious villains poised to transform an entire underground region at their whim. Your characters must trek through the monster-infested Darklands, from claustrophobic tunnels to jungle-filled hidden worlds, pursing an enemy connected to an ageless evil. Can you untangle sinister plots and ancient rivalries set into motion before human reckoning?

The Vaultlines Adventure Path is a complete Pathfinder Second Edition campaign for 11th- to 20th-level characters. Everything a Game Master needs to run this exciting high-level campaign can be found in this single volume, including in-depth adventure scenarios, stats for several new monsters, and support appendices meant to give Game Masters additional material to expand the campaign.

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Released: 04 November 2026