GrimHaven The Fall of BlackBerg

It started with a discovery.
Inside the secret GrimHaven Facility, a scientist created a fungal virus known as FGS-a mutation meant to heal the human body.
Instead, it destroyed humanity.
Within hours, the laboratory collapsed into chaos. Scientists died. Soldiers failed to contain it. And the infection spread beyond the facility... reaching the nearby city of BlackBerg.
Now the streets are filled with monsters.
Peter S. Estevan, a young soldier with only two years of experience, is one of the few survivors left. Haunted by the death of his comrades and his father, Peter believes he failed everyone.
But survival means moving forward.
While searching the ruined city for food and survivors, Peter encounters Natalie C. Harper, a mysterious girl with a pistol, a past she refuses to talk about, and trust issues that keep her constantly on edge.
Together, they must survive a city crawling with infected creatures, uncover the truth behind the FGS Virus, and face the dark secrets hidden inside GrimHaven.
Because the zombies... are only the beginning.
And something far worse is evolving.
In a world where humanity has fallen, survival is the only rule.