Syrens

Syrens are a type of mutant squid/woman/falcon things. While at first a Syren will appear beautiful once you get near one she will turn into her true form, a giant falcon monster and she will turn you into a Syren!!!! They only appear on Syrens Rock and very few sailors have made it out from there clutches

Appearances in POTCO
Syrens only appear at random in uncharted waters.