First of all, the blurb gives you wrong impression of what to expect, or at least I read different story. The story about Sirens who are sent to Mortal world, to find ways to escape Hera's curse.
Meoldy is one of the Sirens who are sent to Mortal world this time, and her mission is to mate with a human man, then eat him and become pregnant, so she could dilute their blood and maybe break the curse that way. When they were swimming to a surface she meet an specter, that asks for her help. Mel is different than the others, she does not want to go to Mortal realm, she does not want to kill and she does not want to eat men, but she must.
Dean is San Francisco's police officer, young, strong male, who goes to bay to count the crazy swimmers, hoping to keep them from drowning that way. One morning he sees an redhead twitching in a water, so he jumps in, even if he does not like the water. But she does not need help and she is surprised, that somebody thought her drowning, since she was just talking to sea lion and was laughing at his joke.
Well, when Sirens come to land, they start to age really rapidly, so their time to find a man is limited. Mel is not happy about her mission, but when Dean fins her later that day in Sirens Tour office, she is forced to go on a date with him.
Yes, it's nice to go to a date, to kiss good night, to recieve flowers, but Melodie's filings for Dean grow stronger day by day and also Deans feelings for her, but she can not show him her real face. When she finally is forced to do, the end is not what she was hoping for.
I guess we will see Melody in some other The Escaped story since she is somehow connected to James. Nice story.