The second in our growing collection of Patreon-fueled collaborations, we re-imagined the Graveyard Nymph as a single, CR 5 foe with a lair that will leave most characters second guessing their life choices, especially when the Graveyard Nymph is angered. 

Those who manage their relationships with these powerful creatures can learn quite a bit about the Etheric Realms, and to most peoples' interest, those who now dwell there - namely, the dead.
 
This 8-page PDF includes a single, 5e-compatible CR 5 foe.