fics/atropos.html"> by Kouri and Karasu
Pairing: Hisoka/Tsuzuki, Subaru/Seishirou, Kamui/Keiichi, Fuuma/Kakyou, Muraki/Anything that moves
Description:

I can't rec fic without reccing this as this is literally one of the first pieces of fic I ever read. Tsuzuki and Hisoka are sent down to investigate the events that are occuring with the end of the world in 1999 and event get even more screwed up than in Clamp's version.