From the back cover:
MAGIC AND MYSTERY
The Nithians have long been the stuff of legend on the outer world; they are a little less mysterious in the Hollow World. Ruled by powerful pharaohs, said by some to be Immortals in mortal form, they are the most changeless of all the cultures in this realm.
What are the fabled powers of the Nithian pyramids? Is there still a relationship between the Haptans and the Tanagoro tribes? Do the tales of fabulous floating chariots drawn by fiery beasts contain more than a kernel of truth? The answers to these and many more questions are contained in these pages.
• The HOLLOW WORLD™ boxed set is required for use with this accessory.
• This product includes a 48-page DM's booklet, a 48-page players' booklet, and a special four-color, double-sided, poster map of Nithia.
• Details on new magical items and Nithian character classes are presented for use in your campaign.
• Look for Sons of Azca, the first cultural accessory in this series, at your favorite hobby store now!