It's more than a shot across the bow when young solo sailor Jennifer Travers is murdered on her yacht with a flare gun. Who would kill Jennifer in her homeport after her year-long voyage at sea? Nicola and Charlie navigate their way through the clues: a cut that won't heal, a hidden compartment and a coded message. In discovering Jennifer's secret, they strike a whole new mystery. But someone has their hand on the rudder for the twists and turns of this mystery - and they have earmarked Nicola for a watery grave.