Caroline B. Cooney, beloved international bestselling author, captures the technicolor complicated human heart in this literary Southern mystery about one secret afternoon in 1964 when a young wife barreling down a dirt road in her station wagon chooses not to be a bystander.

Until this Sunday, Muffin never looked back.

1964: Christaphine is twenty years old, newly married, and determined to make a home and a life for her and her husband, Tommy. But when Christaphine discovers Tommy and his friends on the verge of committing a horrible crime, she does what she has to do to stop them. Afterwards, she knows she can't ever go home again--so she disappears...until this Sunday.

50 years later: When Clemmie's neighbor, Muffin, drags her from Sunday morning service at Trinity Hill Church, convinced that the man she's just spotted across the aisle is a dangerous figure from her past, at first Clemmie thinks she's being dramatic. But as Muffin reveals to Clemmie what happened in the middle of a field in South Carolina five decades ago, Clemmie realizes her friend has been keeping dark secrets--just as Clemmie herself has. And the secrets that belong to both women are not the kind that can be revealed without dire consequences...