There will be a Botchling crawling around the city/islands. Botchlings rise from the ground after being given improper burials. They are stillborn babies without names. They come back cursed and hunt down those that buried them via Blood Ties.

A Wraith. They appear near cemeteries or in homes they inhabited during their lives. They usually have no memories and are guided strictly by hatred towards the living. May they rest in peace.

A Swamp hag. They dwell near shallow streams, rivers, and wetlands. Though bulky, they are excellent swimmers. They can even swim through thick mud with astonishing agility, surfacing beside their victims to attack them with their sickle-shaped claws.

And lastly a few Nekker they're like drowners but a bit worse.

As a bonus, I'll be setting free some demodogs from Stranger things in their various stages.