Papyrus is dead. As are over 100 of the monsters in the Underground. Now it was just Chara against Sans in the Last Corridor. Already prepared to die here, Sans fights more out of responsibility than anything else. Simply waiting to die, and that would be the end. At least until next round, right? Unfortunately, Chara has other plans. !!Warning: language is a thing in here **This is MY story from Archive of our Own. I'm copying in here for more people to enjoy**

Frisk is a scientist in the laboratory of Ebott City, where she works with her Roomate and coworker, Chara. Frisk discovers anomalies beyond compare once she creates a device to measure the irregularities of the frequencies in Mt. Ebott. Her findings are extraordinary. These findings are appealing to the US military, who foresee the specimen left underground as a more of a biological weapon of warfare for the oncoming war of WWIII. Frisk's curiosities get the best of her. What are they hiding under the mountain in which SHE discovered? Looking for this truth, she gets trapped underground, where the once lively place is now desolate and strangely silent. Will she make it out alive to tell the world of her findings? Or will she die first to the skeletal hands of the last monster to roam the dusty underground?