Onyx Storm
(The Empyrean #3)

The highly anticipated third installment in the romantasy series, Fourth Wing, wherein dragon rider Violet is finally put to the real test.

After almost eighteen months at Basgiath War College, Violet knows the training is over. The raging war closes in around her as she seeks allies from unfamiliar lands. Navarre needs an army, power, and magic-- and Violet might be their only hope.