Review Detail of _persophone in A Poisonous Kiss Of A Siren

I'm a huge fan of greek myths and as you can see in my name that I love goddess Persophone so I will be happy to see her name here well I'm not forcing you author. The story is great but like everyone I'm curious about that mysterious person, why is she/he looking for Serenity/Zephyr or even Desiree well I don't have any clue who that person is looking ffor but my insticts says its Serenity that, that person is looking for