From the east came the Bone Giants. From the south, the fire-wielding Hathrim.
 
It was an invasion that sparked war across the six nations of Teldwen. Now the kingdom's only hope is the discovery of a new form of magic - one that will call the wondrous beasts of the world to fight by the side of humankind.
 
In the start of a thrilling new series, the New York Times bestselling author of The Iron Druid Chronicles creates an unforgettable fantasy world of warring giants and elemental magic.