The Onyx Covenant: Enemies to Lovers Romantasy by Mila Young

HE ONCE REJECTED HER HEART. NOW HE HUNTS FOR IT. Lyra Mooncrest has spent years burying the memory of Theron Shadowmane-the wolf shifter who shattered her heart. Now, as the Harvest Ritual approaches, she's thrown into a deadly tradition that forces her deep into forbidden territory, where the ancient magic that could save her pack lies hidden. But the ritual has a cruel twist-Lyra must work alongside Theron, the only man who ever made her feel worthless. The ritual grounds are soaked in the blood of those who failed before her. Many participants would see Lyra fall just to eliminate the Mooncrest line, and Theron stands at the front of that line. With danger at every turn, Lyra must sharpen every weapon in her arsenal just to survive. Because when the ancient ritual begins, there are only two possible outcomes: HUNT OR BE HUNTED. EITHER WAY, SOMEONE BLEEDS.