Cassie's life has been upended by teen pregnancy. Not her own--her big sister's. Julia, now 18, lives at home, has managed to graduate high school (a herculean effort by everyone in the family), and her daughter, Addie, is beloved by all. But no one is happy. Julia feels squashed by parenting and being parented at every moment. Cassie feels invisible. So the two sisters take the baby and run away on an adventure to find themselves and come to terms with their own crumbling relationship. This runaway sequence stretches credulity, but it wraps in technology that readers will understand--and that helps to explain Cassie's parents' response.

In many ways, this is a "make lemonade" story. Cassie and Julia's family makes the best of a difficult situation. They're a loving, supportive family. The baby's father is still in the picture. Everyone is trying so hard to keep going day after day. But there are a lot of lemons to squeeze: friends whose parents won't let them visit anymore, missed swim meets, missed practices, missed classes, missed everything.

This is a sensitive, generous, tween-centric look at a tough topic that usually stays in the teen sphere.