House of Burning Frost by Olivia Wildenstein — book slip

Isla Ríhbiadh, crown princess of Luce and an immortal shifter sorceress, finds herself in a precarious situation after accidentally poisoning her grandmother. To avoid punishment, she proposes a fake engagement to the Glacin King, Konstantin, to trap his shifter-hating sister. However, what starts as a strategic ruse soon blurs into genuine desire and perilous games, challenging Isla's resolve and her childhood fantasies.

House of Burning Frost is a standalone romantasy filled with peril, passion, and the power of love to transcend fate.