Centuries ago, mutation infected every living thing. The world was thrown into chaos and humanity was left with no choice but to seal themselves away in an undergound facility. To protect future bloodlines, the surviving population was soon divided by not only intellect, but undeniable genetic superiority.

Phylum is a brilliant young biologist with greatness ahead of him, but his status comes with certain expectations. In a rare moment of defiance, he seizes the chance to join a new scientific expedition to the surface. However, when his ambition almost costs him his life, he encounters something extraordinary:

A girl, a human girl, living on the surface.

Despite her animalistic qualities, she is remarkably intelligent, compassionate and even charming. He begins to fall for her, but the further they explore the vibrant paradise that she calls home, the more he reflects on the life he must return to.

Published
October 4, 2025
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Author

Bonnibelle Angelica

Bonnibelle Angelica grew up in the quiet stretches of rural Australia, where open skies and untamed landscapes shaped a creative imagination that would later find its fullest expression in writing. From an early age, she filled notebooks with sketches, short stories, and fragmented ideas for worlds that felt both familiar and strange, a practice that eventually led her to the speculative and dystopian realms that define her fiction today. Her debut novel, Human Nature, introduces readers to a world rebuilt beneath the surface after cataclysm, where survival hinges on navigating genetic hierarchies, moral complexities, and the fragile bonds…