Queen Takes Darkness 1 by Joely Sue Burkhart — book slip

Helayna Ironheart has escaped the darkness of Hel and returned to the human world, bringing her three guardian Blood with her.

As a vampire queen, she struggles to adapt to her new life and responsibilities, especially when her brother leaves a traumatized queen in her care.

With sun-demons threatening her new home, Helayna must gather more power by calling more Blood, even if it means returning to the Darkness she swore to leave behind.

For fans of dark fantasy and reverse harem romance.