Legends are forged in war. The Scavenborn are moving in the shadows, striking from within. Iden escaped the destruction of Stormwatch with his griffon Tempest… but survival was only the beginning. Now he must race across the skies to warn the remaining Eyries before the same fate reaches them. But every stronghold believes itself untouchable, and every delay gives the enemy time to tighten its grip. As alliances fracture and with trust in short supply, Iden must unite the Eyries before they fall one by one.