Shattered Crown by Ken Sanchez

Deep in the Eldergrove, Thorne and Silas Ashworth have forged a love neither believed possible. Their bond has begun to reshape the world, healing old wounds and awakening ancient powers.
But peace is fragile, and darkness stirs at its edges. When Elder Willow begins to fade and the forest’s magic falters, a creeping corruption seeps through the weakening boundaries. In the capital, King Thomas extends an unexpected offer, one that could shift the kingdom’s future or conceal a trap laid generations ago.
As tension rises in both court and grove, Silas is pulled between the legacy of his bloodline and the life he has built beside Thorne. The Shadowblight thrives on that division, feeding on mistrust and fear. When duty forces them apart their connection is tested as never before.
To face the growing threat, Silas must undergo a transformation that challenges everything he thought he was. The cost may be his identity, his future, or the bond he and Thorne risked everything to create. And still, it might not be enough.
Because the enemy they face was born in silence, shaped by betrayal, and it does not seek conquest alone. It seeks to unravel the very balance of shadow and light.