The race of malevolent rat men known as Skaven has infested the Mortal Realms for an unimaginable number of centuries. They are arrogant, greedy, and completely devoid of compassion, seeking to annihilate all other sentient creatures: they want to expand, multiply, and devour everything they encounter until they are the only ones left to reign over the empty and corrupted shell of reality. Those who oppose this plan are overwhelmed by swarms of red-eyed warriors, plague weapons, monstrous beasts, and lightning-spitting war machines. Arise, children of the Great Horned Rat!

Within these pages, you will find everything you need to take command of the Skaven's ratmen hordes in your games of Warhammer Age of Sigmar. Read the tale woven with treachery of how the Horned Rat has attempted to conquer the Mortal Realms on multiple occasions, explore the internal disputes among the various Great Clans, and immerse yourself in the gnawing depths of the teeming Under-Empire.

This 120-page hardcover book contains:

- Entire corridors of background information on the Skaven: their history, their constantly contrasting society, and the majesty of the Great Horned Rat
- Avalanches of illustrations depicting the wicked grandeur of the Under-Empire
- 45 war scrolls and battle profiles for the treacherous rat men and their terrifying war machines, from humble Clan Rats to the craftiest of the Lords of Death
- Rules for all 6 Great Clans, along with command traits, power artifacts, lore of magic, and battle traits such as Strength in Numbers and Skedaddle
- Rules for Road to Glory campaigns that allow you to implement the convoluted plans of the Great Horned Rat, plus 11 battalions of scrolls to use in your narrative games
- Content for balanced games, including 5 grand strategies and 4 battle tactics to confound your opponents
- A showcase of skittering swarms of Skaven miniatures from the various Great Clans, accompanied by guides to help you paint them yourself