Monsters exist. Tony Stark believed everything in the world could be explained by science, facts and logic. He believed he knew how the world worked, but when he meets his long-lost son, one he didn't even know existed. That same son would introduce him to a world of monsters, demons, gods and magic. (Pre-IM 1, Crossover with RE/FNAF) X-Over
Rated: M - English - Supernatural/Adventure - Chapters: 15 - Words: 112,021 - Reviews: 45 - Favs: 185 - Follows: 217 - Updated: 8/3 - Published: 11/19/2022 - [OC, Tamamo, Morgan Le Fey] Iron Man/Tony S.