Elena Swan believes she's going to die. And soon. She's not ill. She's not in imminent danger. But she is sure it's going to happen. Because many years ago. . . she'd made a promise to a stranger in the woods. Elena's mother was in hospital after a life-threatening accident. The promise would keep her mother safe but put Elena's own life at risk instead when she grew up and turned thirty. Elena put the promise to the back of her mind over the years. But she's twenty-nine now and when something happens that puts her life in danger she remembers. And she knows. But Elena hasn't done everything yet. She's not brave like her daredevil friend Rory. But she's also not ready to give up on life. Not before she's been to Paris. She always wanted to skydive too. She's never even fallen in love. Without the promise of tomorrow can she fulfil all her dreams before fate comes for her?