The Princess's Forbidden Tutors

I'm a princess in a dying kingdom, and my body is the last hope for my people. My parents want me to marry a powerful heir to save us, but my only escape is the secret, punishing lessons from my sinfully older magic tutor. Now, three powerful, predatory suitors—a werewolf, a fae, and a vampire—have arrived to compete for my hand. They all want to claim me, but my tutor was here first, and he's not willing to share his favorite student.