From the front page of the adventure: The WeavePasha of Almraiven seeks adventurers to recover shards of the Calimemnon Crystal. He has traced one shard to the Plain of Stone Spiders. A Living Forgotten Realms adventure set in Calimshan for characters of the Paragon tier (levels 11-20). The Calimemnon Crystal Major Quest comprises CALI4-1, CALI4-2, and CALI4-3. The three adventures are playable in any order.