No Prep Module: A Rift in Space and Mind (Patreon)

https://www.kassoon.com/dnd/adventure/no-prep-module-a-rift-in-space-and-mind/ 

An Elder Brain seeks to unleash dangerous entities from the Far Realm, causing bizarre mutations and insanity that the PCs must stop before all of reality is consumed.

https://www.kassoon.com/dnd/adventure/no-prep-module-a-rift-in-space-and-mind/