Heir of Autumn by Nazri Noor

The Breath of the Wind. The Tears of the Ocean.

The Oriel of Water was always meant to be Lochlann Wilde’s next destination. Rich with elemental essence, it’s the perfect source of the magic needed to power the Wispwell and help stop the Withering.
But now Locke and Sylvain have been tasked with a unicorn search and rescue mission. And that’s on top of preparing for their first visit to the Verdance, the realm of the fae.
Locke has been warned enough about Sylvain’s family, their strong magics and their even stronger personalities. But he’s faced dangerous threats before: fierce guardians, colossal monsters, gods of ancient myth.
He’ll be fine. It’s only an audience with the Queen of Autumn herself.