A PASSENGER IS MISSING...BUT WAS SHE EVER ON BOARD AT ALL?This was meant to be the perfect trip. The Northern lights. A luxury press launch on a boutique cruise ship. A chance for travel journalist Lo Blacklock to recover from a traumatic break-in that has left her on the verge of collapse.Except things don’t go as planned.Woken in the night by screams, Lo rushes to her window to see a body thrown overboard from the next-door cabin. But the records show that no-one ever checked in to that cabin, and no passengers are missing from the boat.Exhausted and emotional, Lo has to face the fact that she may have made a mistake –- either that, or she is now trapped on a boat with a murderer...