A heartbreaking and hopeful story that explores grief, mental health, first love, the cosmic feeling of finding your person (and yourself), perfect for fans of The Fault in Our Stars, If I Stay, and Six Feet Apart.

Sixteen-year-old Ellie has been in mourning for the last year since her twin brother, Jack, died in a car accident. Ellie barely eats or sleeps, her grades have plummeted. The only thing that brings her solace is running under the stars - the same constellations she once studied with her brother.

Then, on a midnight run, she collides with a mysterious boy she's never seen before but is inexplicably drawn to. Homeschooled most of his life due to illness, Tom is finally healthy and experiencing the wide-open world for the first time. Ellie isn't looking for boyfriend. She isn't even looking for a friend. But she can't help but feel like the cosmos are pulling them together. . . until a stunning discovery throws Ellie's entire universe into chaos.