Caveman Alien’s Terror (Caveman Aliens Book 25)

Abducted and stranded on a prehistoric planet, Astrid’s only ally is Praxigor—an arrogant, electric-blue dragon shifter obsessed with gold. She needs his protection. He needs her help. But if his ruthless nature pushes her too far, she might bury a dagger in his hide before he gets his treasure. Steamy enemies-to-lovers romance!