Seventh Soul is an Undertale AU Fan Comic. When Sans stumbles upon a mysterious locked door as a child, he discovers not only a best friend, but the very thing the entire underground has been desperately searching for - a human. Even though life ends up taking an unexpected turn for the worst, Sans is determined to protect his human friend and help her get back to the surface, no matter the cost. Check out more art on my deviantart: https://www.deviantart.com/eightthekat