Blade of the Nightking by Georgia Parry — book slip

Elowen's world is thrown into chaos after she accidentally shatters the Veil, unleashing the Firstborn back into the realm. Her ancient magic binds her to a second mate, the Dark Prince, whom she despises.

When her beloved Aedric becomes trapped within his own mind, Elowen must ally with her greatest enemy to find the three Gates of Othyr, their only hope of breaking the bond.

As they journey across the continent, Elowen uncovers secrets that challenge everything she believed about her world and the men she loves.

With monsters rising and courts fracturing, Elowen faces a choice: protect Aedric's secret or risk losing the Dark Prince forever.

For fans of slow burn enemies-to-lovers romances with morally complex characters and epic quests.