Sibilants of the Drowned Shoal - Driftkin - appear at first as spectral reef-fish: glassy, translucent bodies barely refracting moonlight as they glide through salt marshes and tidal estuaries. But when night falls over a seaside hamlet unprotected by reef-wardens or ancestral rites, the shoal converges. Their forms shift—now opalescent skinned, spindly and shriveled like drown victims dragged from the reef. They hiss and click in unison, though their sounds are perceived more as pressure in the ears than audible noise.
Like their riverbound cousins, they bite and feed on the fallen, a 5% chance to cause bleeding damage—1d4 hp lost slowly over time. Victims describe a sensation of being listened to by the sea itself as the blood drains.
Though not undead, they can be turned as ghouls, but their connection to the silence of the deep makes it harder to banish them. On a successful turning attempt, only 1d6 of the shoal are affected, and only if they fail a Saving Throw vs. Spells. Those who flee return to the water and will not rise again near that settlement for 2d6+6 nights, drawn away by currents of unmaking.
I made these for the adventure and they appear as fish when in the water and humanoid forms on land. Same stats.
Players it's your turn to attack.