Redacted conspiracy/,headcannon:
So during the 22 Redactness 'After Dark' Vindemiator got the phone call, by Echo helping 'DJ Anxiety' make the call into his world.
Echo acts as a "bridge" for both Our world, Redactedverse and Imperium.
Hudson (DJ Anxiety) knows about Echo somehow. Kind of like a "deal with the devil" relationship.
Echo occasionally shows up (mostly around March and October) Echo won't explain too many "other worldy" details to Hudson (for good reason). He's aware of Imperium, but not the extent of it.
Echo is Hudsons supernatural being buddy that just pops in on occasion. Echo is always his spooky, mysterious, haunting deminor self, but Hudson acts like they're the best of buds.
That's just the vibe they give me anyway,
Thank you for coming to my Ted talk