Ellie Mack is supposed to be applying to doctoral programs in biology and pursuing the high-powered career in science her parents chose for her. Love isn’t on the schedule.

Then she meets Cade Williams.

Cue the instant attraction and automatic denial. Ellie isn’t dating a woman fifteen years older than her, with an ex-wife and a kid who comes first, no matter how hot she is.

When Ellie’s parents’ marriage implodes, Ellie’s life begins to unravel; she seeks solace in Cade’s arms. Over the course of the summer, long hikes, starlit nights, and a connection that feels safe and real are the perfect comfort she desperately needs.

But when summer ends and real life interrupts their romantic bubble, the gap in their ages and life stages may be too great. Family obligations and insecurities mount. Are Ellie and Cade just a summer fling, or truly written in the stars?