No Prep Module: The Necromancer's Lament (Patreon)

https://www.kassoon.com/dnd/adventure/no-prep-module-the-necromancers-lament/ 

In a fey-touched oasis where the veil between worlds is thin, a grief-mad hobgoblin necromancer obsessed with resurrecting his dead wife perfects a profane ritual to bind lost souls and unleash dangerous magic from beyond the grave.

https://www.kassoon.com/dnd/adventure/no-prep-module-the-necromancers-lament/