Academia of the Beast by K.N. Lee

Raised in fear of her power.
Sold and betrayed by her lover.

Allyn escaped the hunters once before. As a witch, she risks capture every day. Now, she lives in the slums of the opulent kingdom of Elastria, where the Winter Winds are brutal,and force everyone into their homes for the entire season. When one of her best friends receives an invitation to the end of season Winter Ball, Allyn would rather sulk about her boyfriend leaving her instead of partying at the most exclusive club in the kingdom.

A chance encounter with the crown prince of Elastria sparks hope for a brighter future, one where she might find true love. All hopes are dashed when she’s tricked by her ex-boyfriend and turned in for the bounty on her head.

Now, a prisoner in an eerie castle where the servants are…peculiar, the walls whisper, and the prince’s mysterious twin brother struggles with the decision to keep or kill the witch he’s hunted and once lost, Allyn struggles with the desire to tame the beast within the prince, or escape to freedom.

The curse of the castle is strong. But, the magic hiding inside Allyn might be more powerful than she or the prince realized.