Text from the back cover:
Harper Proulx has lived her whole life with unanswered questions about her anonymous sperm donor father. She's convinced that without knowing him, she can't know herself. When a chance Instagram post connects Harper to a half-sibling, that connection ultimately leads Harper to uncover her father's identity. So Harper joins her newfound half-siblings on a voyage to Hawaii. The events of that summer, and the man they discover will force Harper to face some even bigger questions: Who is she? Is she her DNA, her experiences, her successes, her failures? I she the things she loves or the things she hates? Who she is in the dark times? Who she might become after them?