From the PDF introduction
A City of the Spider Queen Web Enhancement
City of the Spider Queen is an epic FORGOTTEN REALMS adventure designed to occupy a party of adventurers as they advance from 10th level all the way up to around 18th level. Enormous in scope and world-shaking in consequences, the adventure could provide the foundation for an entire campaign. The purpose of this web enhancement is to offer additional material to just that end: to enrich campaigns set in the Underdark, focusing on the events of the City of the Spider Queen adventure and the War of the Spider Queen novel series.
To use this web enhancement, you should already have City of the Spider Queen by James Wyatt. This bonus material is brought to you by the official FORGOTTEN REALMS website.
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