The game left behind by her now-deceased sister begins with a mysterious clue. Who is Will Tucker? Grace Peterson was born with a specific purpose: to save her sick sister, Lucy. But now Lucy is gone, and with her, everything has been lost. Consumed by grief, Grace feels her world is empty—until the day she finds a mysterious game her sister left behind.
Lucy’s final gift is a map of secrets, challenges, and wishes—a chance for Grace to pursue the dreams she has buried until now. The first clue? To find Will Tucker, a stranger with his own wounds, who is connected to Lucy. Together, Grace and Will are swept into a dizzying journey that will bring pain as well as hope, unlocking the memories, vulnerabilities, and deep longings Grace has always kept hidden.

Each step brings Grace closer to understanding Lucy’s true wishes, as well as her own. However, as new feelings emerge between her and Will, she is forced to face the hardest question of all: can she leave behind the guilt of loss and open her heart to the possibility of love?