Host of Embers used Hide! It's super effective!

Congratulations on your induction into the official unofficial hide-and-go-seek society of Dark Souls! Your task is to find the invader or host and, if applicable, his or her phantom friend—a feat which has apparently eluded you thus far. Will you succeed in your valiant quest? Only time will tell.

Perhaps a great deal of time.

P.S.
We humbly request your presence in our group chat at your earliest convenience.