Board Thread:General Discussion/@comment-25850402-20150723062747/@comment-27015049-20151222132738

I think mermaids and sirens have their own kind of magic similar to fairies. While fairies use wands and dust to use their powers, mermaids may use music while sirens use the waters of the springs or lakes they guard.

Mermaids can use conch shells like horns to manipulate the weather and their singing can draw men towards them. Hook also stated in the book "Out of the Past", that his brother's dead-like sleep may have been the result of a mermaid's enchantment. Mermaids may be able to enchant people, possibly with their voices and keep them under their spell long after they have stopped singing. Also the conch shell maybe a reference to Triton from Greek mythology who could manipulate the sea with his shell horn.

Though not proven, a siren's source of magic may be the body of water she presides over. This may be the reason why the siren had to pour water over herself to change into Snow White. They can also either sense their prey's desires or her magic can instinctively transform her into what her victem desires. Sirens may also be able to manipulate the flora of their lakes, as shown when the siren ensnared Charming in the weeds on her lake bed.