From the back of the book: "Planetary Survey 2 presents the homeworld of a recently discovered intelligent race...the Shriekers. Unfortunately, all that most of Humaniti knows about the Shriekers is that their eggs are precious jewels. Will you help the Shriekers, or help wipe them out for profit?" Includes: - the history and current situation of Denuli - a color star map of the surrounding star systems - complete data on the Shriekers, including their use as NPC or player characters - Adventure seeds