No Prep Module: Shadows over the Arcane Academy (Patreon)

https://www.kassoon.com/dnd/adventure/no-prep-module-shadows-over-the-arcane-academy/

Beneath the spires of a fabled wizarding school, a sentient bracelet weaves a dark web of control and deception.

https://www.kassoon.com/dnd/adventure/no-prep-module-shadows-over-the-arcane-academy/

This adventure also includes a new creature that you can use in your own games:

https://www.kassoon.com/dnd/monster-stat-block/2948/demon-pactmage/