The Sister Diaries

Sisters, Secrets, and Second Chances

The Sister Diaries by Karen Quinn is a sparkling, smart, and emotionally layered novel that explores the complicated but unbreakable bond between two very different sisters. Brimming with wit, heartache, and heartfelt revelations, this is a story about fame, family, and finding your true self—one secret at a time.

Behind the Spotlight Lies the Truth

Cassie is a former soap opera star whose career has stalled, while her sister, Coco, is a suburban mom living a seemingly perfect life—until everything falls apart. When Cassie decides to launch a tell-all podcast about her sister’s hidden past, tensions explode. But as old wounds resurface and truths are revealed, the sisters are forced to confront their shared history and what truly matters most.

Sharp, Funny, and Full of Heart

With keen observations and clever dialogue, Karen Quinn delivers a funny yet touching novel about sibling rivalry, reinvention, and redemption. The Sister Diaries is a fresh, contemporary story perfect for fans of women’s fiction that blends humor with emotional depth. It’s a reminder that even the most fractured relationships can heal—if you’re brave enough to tell the truth.