The Distant Shore (Stone Trilogy #1)
Mariam Kobras

There's nothing like finding a letter on your breakfast table informing you have a teenage son you knew nothing about, but that's what happens to international rock star, Jonathon Stone. He drops everything to find the boy, and his mother the girl he loved so many years ago who left him when his rock n roll life became too much for her to bear.
Seeing her is like falling in love all over again, and everything seems perfect, until someone sets out to destroy their idyllic life.