Looking for a lost fic on wattpad..

(Lost 156, undertale AU fic)

I swear this existed! Back in 2020, possibly 2021, I was largely active in the undertale AU Fandom and I found a fic I fell in love with. I don't remember the name, BUT the main character was a very unknown afterdeath ship child (Raven!Sans), I remember he was kidnapped and taken to some puzzle filled building, I remember the number 156 being mentioned ALOT, as Raven was apparently "test subject 156" or something similar. More fairly unknown sanscest shipchildren, Pallette!Sans, Goth!Sans(romantically invovled with Pallete), and Blueprint!Sans(Romantically invovled with Raven), were trying to find Raven and connecting all these clues. All while Raven was solving these complex puzzles, In a maze, being chased by a loud monster. I'm fairly certain this had a "ravenprint" tag.

156 has been my favorite number(and strangely a large part of who I am?) since I read said fic, but I cannot find it! Maybe I just made it up in my head, I have no idea. If anyone knows what I'm talking about, Please tell me! I need to know if the fic 2020 me hyped up was even that good. Please don't make fun of me. Thank you!