What the Flames Left Behind

This is just my take on the Ghosty Bois Inc AU by @WolfyTheWitch on Twitter
I found it such an interesting AU and decided it would be fun to create a universe for it! This is my first attempt at something like this, so any advice or such is appreciated! Hopefully you enjoy
<3

Tired of the endless hustle in their lives, Tommy and Tubbo jumped at a deal to spend winter vacation away from the city. It was claimed that the house was safe, though a bit dirty, and perfectly severed from the frustrations of their busy school lives. Even if it had been the place of a disturbing incident, what did it matter?
The dead were dead, and the three casualties in a fire, though tragic, was in the past.
Not quite.
Though they had prepared for some disturbances, they had failed to realize who would actually pose the biggest danger.
Ashes, after all, weren't the only nuisance the flames left behind, and when looking just a little too deep beneath the soot, the two boys discover a darker side of the world that was never meant to be seen.