Lurking In The Shadows. Toxicity: A Dark Horror Series About Survival, Trauma, and Monsters - Fernando Sierra

Jennifer was the kind of girl people trusted.

She helped her mother in the mornings, studied harder than most, and never went looking for trouble. At school she was known for being kind, patient, and the one person who never seemed to hate anyone.

Then Nathaniel arrived.

At first he felt different from everyone else. Confident. Charming. Someone who seemed to understand her in a way no one else did. What started as attention slowly became control, and Jennifer found herself drifting further away from the people who cared about her most.

By the time she realizes something is wrong, it's already too late.

Rumors spread. Friends disappear. The truth becomes impossible to separate from lies. When humiliation turns into betrayal, Jennifer is forced to confront a choice that will change her life forever.

But revenge has consequences.

And sometimes the thing watching from the shadows isn't there to help.

A dark psychological horror about manipulation, obsession, and the moment a victim becomes something far more dangerous.

Once a line is crossed, there is no turning back.