Cara can’t escape the night her boyfriend Miles died. The slammed doors. The silence. The words she can’t take back. They replay in her mind long after everyone else has moved on. She builds a life anyway — finishing college, working at a veterinary clinic, trying to create stability out of grief. Years later, a discovery changes everything: a smooth, hollow stone hidden inside her rescued dog — a stone that sends her back through time. At first, the changes are small. A different answer. A better choice. A moment softened. But the pull of the past grows stronger. The temptation to return to the night Miles died becomes impossible to ignore. When she finally faces that night, she uncovers a truth more complicated — and more painful — than she ever imagined. Some losses can’t be undone. Some truths refuse to stay buried.