The long path to the throne has only just begun for Aelin Galathynius. Loyalties have …

Erawan had skillfully divided his fleet, placing it in enough key locations that Rowan informed Dorian they’d have to sacrifice land, allies, and geographical advantages in order to hold others. Dorian had hated to admit to the Fae warrior that he’d never heard any of these plans these past years—his council meetings had all been on policy and trade and slaves. A distraction, he realized—a way to keep the lords and rulers of the continent focused on one thing while other plans were set in motion. And now … if Erawan summoned the fleet from the gulf, they’d likely sail around Eyllwe’s southern coast and sack every city until they reached Orynth’s doorstep.

Maas, Sarah J.. Empire of Storms (Throne Of Glass Series Book 5) (pp. 235-236). Bloomsbury Publishing. Kindle Edition.

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Just goes to show how powerful a magical military can be... one that's on the wrong side of the war.