From the acclaimed author of Pack Up the Moon comes a poignant and beautiful novel about love, loss, and the unbreakable bonds of family—particularly those between mothers, daughters, and sisters.

Ten years ago, Nora Glass started writing essays about being a single mother of a six-year-old daughter. Her weekly column made her a household name, and over the years, her fans have watched Ellie grow from a toddler to a teenager.

But now Nora is facing a problem that can’t be overcome. Diagnosed with a devastating disease that will eventually take away who she is, she is scared for herself, but even more frightened about what this will mean for her sixteen-year-old daughter.

Now Nora has no choice but to let go of her hard-won image as a competent, self-assured woman, and turn to the one person who has always relied on her: her twin sister, Mariana. Nora and Mariana couldn’t be more different from one another, and they’ve always had a complicated relationship. But now the two sisters will have to summon the strength to help them all get through a future none of them could have ever imagined, while uncovering the joy and beauty that was always underneath.