The Heart of Moonlight Falls by Colette Rivera

In the end, the heart is all that matters.
James is ready to settle into the future he’s always dreamed of, but he can’t. Nothing comes easily for him and Sebastian while the Storm House curse haunts them and trouble continues to brew in Moonlight Falls.
Battling shades is a given. What James doesn’t expect is the town turning on the man he loves.
Secrets get out and Sebastian must fight for his place in the community as he reckons with his connection to the magic of Moonlight Falls and what it means for defeating his family’s curse and restoring the veins of power once and for all. While the answers he finds challenge his resolve, Sebastian knows nothing from this world or Beyond can break his and James’s bond.
There will always be light in the dark, and together, James and Sebastian can make it shine. But will that be enough to get them through their final challenge?