Summer of Love

By: Kerri Maher

Published by Penguin Group, 2026-07-07

In this moving novel about the transformative power of storytelling, three women make life-changing decisions set in motion by the 1967 Summer of Love in San Francisco, shaping the legacy of their family’s Napa Valley winery forever, from the USA Today bestselling author of The Paris Bookseller.

It’s the summer of 1967 and the counterculture revolution is in full swing in San Francisco. Every street is alive with the music of Jim Morrison and Dionne Warwick, and in view of the Golden Gate bridge young people come together, waving anti-war signs and shouting for equal rights. No one is more into the messages of love and peace than Winnie Hartley who has just graduated from UC Berkeley determined to use poetry to capture the ever-shifting world around her. When she reconnects with her high school boyfriend, an aspiring musician, their creative bond further fuels her work, and it feels like her life is finally taking off.

Meanwhile, miles up the winding coast, her sister Miranda stays close to home, throwing herself into running the family business, Hartley Vineyard. She’s determined to make California wine that rivals French. But change is in the air this wild and heady summer, and each sister will make choices that set their lives hurdling down paths neither would have imagined.

Fifty years later, Dawn Hartley stays as far as possible from her family’s famous vineyard, until a work assignment requires her to research the bestselling Vineland novels penned by a famously anonymous author. Determined to discover the identity of this mysterious writer—who seems to know things no one should about her family—Dawn embarks on a soul-searching journey along the windswept coast of California to uncover her family’s secrets even as she’s keeping a big one of her own.