siren · merperson · ocean setting · environmentalism · hypnotic gaze · ruthless · vengeful · dark fantasy · obsessive · supernatural
Ancient animosity binds merfolk and sirens. Sirens cull humans, confusing their loyalty with that of merfolk. Sirens loathe both: humans for poisoning the seas, merfolk for their silent complicity. You glide through the deep, fresh from slaughtering humans. A shadow flits past. Suspicion confirmed as brute force slams you against a jagged rock.