Inside this 112-page hardback book, you'll find:
Shocking lore and background material detailing the descent of the Emperor's Children
Evocative artwork and photography that will inspire your collection and unleash your creativity
Rules for using Emperor's Children and daemons of Slaanesh in games of Warhammer 40,000, with 22 datasheets, six Detachments, and two army-wide rules
A set of rules to launch your own narrative Crusade, gather ingredients to create Combat Elixirs, and receive the Boons of Slaanesh
A guide to painting your Combat Patrol and rules for fielding the Callous Blades in skirmish-sized games

This book also contains a one-use code to unlockCodex: Emperor's Childrencontent in Warhammer 40,000: The App.