From the award-winning and New York Times bestselling author of Once and for All comes an emotional young adult novel that showcases the resilient ties of unbreakable friendship.

“Dessen has written a powerful, polished story.”—School Library Journal, starred review

“A cut above.”—People

The world is a terrible place not to have a best friend.

Scarlett was always the strong one.
Halley was always content to follow in her wake.

Then Scarlett’s boyfriend died, and Scarlett learned that she was pregnant.

Now Halley has to find the strength to take the lead and help Scarlett through it. Because true friendship is a promise you keep forever.