I was telling my wife about the Xanathar when she misheard and said “what, the janitor?” I can’t help but to think that perhaps that’s where it comes from with Xanathar living in the water system and all. It’s too good to not be true! Maybe it was my accent.Beware The Janitor!
The mop that flails, the cleanser that melts all foes…
Speak not this lore too loudly, or the Xanathar's every agent shall be sent to silence you…#Realmslore

— Ed Greenwood (@TheEdVerse) October 24, 2020