Blooded Labyrinth by S.J. Sanders

For centuries the labyrinth was disconnected from the world of men, containing within its walls the monster, Asterion. Though its corridors occasionally connected with the mortal world to feed, mostly it slept in between worlds as the ages of men passed. And with its slumber, though his hunger gnawed at him continuously, Asterion found some semblance of peace from his monstrous existence.
That was until the day the worlds shifted, and the labyrinth awoke once again, anchoring its entrance within the mortal world, drawing prey within to bloody its halls. Within its depths, its captive stirred and the minotaur, helpless against his hunger, hunted once again.
Since the Ravening, Vicky has led a life of a wanderer, moving from settlement-to-settlement trading salvage for hot food and shelter. In a land overrun by monsters and ever-changing forests, she has no one to depend on but herself for survival. That survival is tested in the depths of the labyrinth, where being human is nothing more than a death sentence. There she is the prey. Captured by a dangerous monster born from ancient myth, Vicky is forced to depend on someone other than herself as she is placed at the mercy of the minotaur’s hunger…and her own.

This fantasy romance has some dark themes and horror elements, including a brief erotic scene in which the labyrinth seeks to devour the heroine unaware. Blooded Labyrinth is a part of the Dangerous Monsters series, a spinoff within the Dark Spirits world.