Just letting you know that I just finished wrapping up the (pre-proofed) Sphere of Annihilation history document written by the book's big bad, Velkeron the Black Crown.
You can find the link on the front page under the samples (looks like an iPad).
It's got about six pages of whacky history (incorporating some of my "new" ideas on how the D&D Cosmology was created, as well as some tables for you to build your own Sphere-centric adventures.
ALSO we're about 1,000 away from hitting the next milestone, a bonus one-shot adventure. I've got a poll going up on my patreon for the type of monster that it will feature, and so far, this big ugly reality-eating feller the ENTROPE is winning:
