Dawn Edelstein is on a plane when she is told to prepare for a crash landing. She braces herself as thoughts flash through her mind. The shocking thing is, the thoughts are not of her husband but of a man she last saw fifteen years ago: Wyatt Armstrong. Dawn, miraculously, survives the crash, but so do all the doubts that have suddenly been raised. She has led a good life. Back in Boston, there is her husband, Brian, their beloved daughter, and her work as a death doula. But somewhere in Egypt is Wyatt Armstrong, who works as an archaeologist unearthing ancient burial sites, a career Dawn once studied for but was forced to abandon. The airline ensures that the survivors are seen by a doctor, then offers offers transportation to wherever they want to go. The obvious destination is to fly home, but she could take another path: return to the archaeological site she left years before, reconnect with Wyatt and their unresolved history. As the story unfolds, Dawn's two possible futures unspool side by side, as do the secrets and doubts long buried with them.