Stops Along the Way by Anna Sortino

A sunny romance about a road trip and life’s unexpected turns from the author of Give Me a Sign.

Iris doesn’t trust the odds. Not when she has a 1 in 4 chance of inheriting the same vision diagnosis as her sister, Amelia.
When Iris travels to the east coast to help Amelia drive her things back from college, the last person she expects to run into on campus is Declan, her board game club rival, but he’s also there to drive his brother home for summer break. The unlikely occurrence results in the four of them caravaning together to Nebraska.
Iris and Declan are used to competing with dice and cards across a table, but the romantic feelings unfolding as they drive across the map are a total surprise. The odds of falling in love on the road seem low, especially amid car troubles and sister drama. Can Iris look past probability and embrace the unexpected?