From publisher blurb: The Secret of the Crystal Cave adventure takes place in a branching cave system that presents challenges, both fierce creatures and dangerous terrain, before the heroes can claim a weave shard of their own. • Adventure with six-eight encounters and eight new maps • Includes three monsters: Spine rat, viperwing, water beast • Includes six new equipment: Shimmering shard, focus shard, fractured shard, faceted shard, shattering shard, needle shard