Inside this 80-page hardback book you’ll find:
- An exciting narrative that spans both Aqshy and Ghyran, commencing the story of the Twin-Tailed Crusade – and the Plague of Doubt that may destroy it before it begins
- Background information concerning four powerful Harbingers: the Grimhold Exile, Marrowscroll Herald, Harbinger of Decay and Rabble-Rowza
- A stunning showcase of miniatures depicting the Harbingers and their followers waging war throughout the narrative
- Harbinger Path to Glory Battlepack – six battleplans, rules for establishing communication outposts to request aid from allies, and quests and upgrades for your Harbingers
- Four Regiments of Renown, each based around one of the Harbingers, including background material, a full set of warscrolls, and pitched battle profiles

This expansion contains a one-use code to add the book to your digital library in Warhammer Age of Sigmar: The App.

This book includes an envelope containing 4x warscroll cards, one for each Harbinger – the Grimhold Exile, Marrowscroll Herald, Harbinger of Decay, and Rabble-Rowza.