Publisher's blurb: A bold foray into the northeast tower could garner you untold riches or an untimely end. Dare you venture into the Tower of the Spider? The Ruins of Grimhold Keep: Tower of the Spider brings you details of the tower and everything you need to explore the dungeon level immediately beneath the tower, including introductory material, an Adventure Record and 9 Adventure cards, 9 Encounter cards, 9 Event cards, 9 Search cards and 18 Treasure cards. The adventure also includes several unique encounters and treasures. The ruined tower can be used as an independent adventure site or as part of the Ruins of Grimhold Keep, with a new entrance to the dungeons beneath.