I recently finished 'When We Believed in Mermaids', and the sisters' dynamic is one of the most compelling parts of the story. Kit and Josie Bianci are sisters who grew up in a chaotic, bohemian household in California, but their lives take drastically different paths after a tragedy. Kit, the younger sister, becomes an ER doctor in New Zealand, living a structured life that contrasts sharply with her wild childhood. Josie, the older sister, is presumed dead after a terrorist attack in Europe—until Kit spots her on TV years later. This discovery sends Kit on a journey to uncover the truth about her sister's disappearance and the secrets that fractured their family.
What makes their relationship so fascinating is how differently they cope with trauma. Kit buries herself in work and logic, while Josie reinvents herself entirely, slipping into a new identity. The novel explores how memory can be unreliable, especially when shaped by loss. Josie’s transformation into someone else isn’t just about survival; it’s a rebellion against the past. The contrast between Kit’s steadfastness and Josie’s fluid identity creates this tension that drives the narrative. The sisters’ bond is messy, painful, and deeply real, showing how family ties can both haunt and heal.