Quicksilver

Saeris Fane survives in a brutal desert city by stealing and staying invisible, until she uses a forbidden power to wake a long-dormant portal and is dragged into the frozen, war-torn realm of the Fae. There she becomes the captive of Kingfisher, a cold, deadly Fae warrior with a dark reputation. Forced to depend on each other as enemies hunt them both, the two clash at every turn while a scorching attraction builds. A long, steamy enemies-to-lovers romantasy.