Wolf’s Bane by Nancey Cummings

A human colony lost in space.

A century ago, colonists crashed on a distant planet. Technology failed and strange energies caused catastrophic mutations. Now every generation slips away from science, into superstition and darkness.
Solenne survives among the broken relics of the past, trying to protect her family from the mutated beasts that wax and wane with the moon. When her father is seriously injured, she turns to the one man she swore never to speak to again. The man who kissed her, vowed he’d return and broke her heart.

Can this be their second chance?
A man lost to the beast.
Since being bitten and cursed to shift into a werewolf every full moon, Aleksandar has lived in exile.

Until he receives a letter from Solenne, the woman he promised his heart to years ago. She’s the only thread that keeps him anchored in the chaos, the only memory that keeps him sane.
He must protect her from creatures that stalk her family, but how can he protect her from himself?
The monster within him won’t be denied.
The beast will have his bride.