Without You, by Saskia Sarginson, is out now. When 17-year-old Eva goes missing at sea, everyone presumes that she drowned…

…Her parents’ relationship is falling apart, undermined by guilt and grief. But her younger sister, Faith, refuses to consider a life without Eva; she’s determined to bring her sister home alive.

Close to shore looms the shape of an island – out of bounds, mysterious, and dotted with windowless concrete huts. What nobody knows is that inside one of these huts Eva is being held captive. That she is fighting to survive – and return home.

Praise for Without You from Woman & Home Magazine: “I was pulled in by the strong characters, intense atmosphere and intricate narrative.”

Win a copy of Without You by tweeting us a picture of your favourite part of the UK coastline @EveWhiteStaff. The competition closes at 5.30pm on Thursday 17th July.

Win a luxury weekend in Suffolk for two and a copy of Without You with Emerald Street. To find out more and enter, please visit the website.

Without You can be bought in WH Smiths, Tesco or online here.