Cross My Heart chapter one

Rachelle Morelle and Nathan Jacobson has been friends since they were in diapers, everything was perfect, until Nate's family suddenly leaves, without telling Rachelle. Ten years later, the friends meet again, but Rachelle swore that she will never let Nate back into her life again. And Nate seems to be hiding something from her, what possibly can it be? When Rachelle suddenly discovers that some very important people are out to get her, and Nate's the only one that can help, can a lovely summer vacation turn their friendship around, and maybe even into something a little more?Will Rachelle ever solve the mystery behind her father's death?