Butternut Summer is the second book in the Butternut Lake trilogy. 

Butternut Summer is the story of a mother and daughter, Caroline and Daisy, their closeness and conflict, and how one summer can upend all their expectations.

 Caroline's life is turned upside down the moment her ex-husband, Jack, strides through the door of her coffee shop. He seems changed--stronger, steadier, and determined to make amends with Caroline and their daughter, Daisy. Is he really different, or is he the same irresistibly charming but irresponsible man he was when he left Butternut Lake eighteen years ago? 

For Caroline's daughter, Daisy, the summer is filled with surprises. Home from college, she is reunited with the father she adores--but hardly knows--and swept away by her first true love. But Will isn't what her mother wants for her--all Caroline can see is that he's the kind of sexy "bad boy" Daisy should stay away from. 

This is Ms. McNear’s second novel in this series, but one does not need to read the first, Up at Butternut Lake, since this stands well on its own. The plot includes four main characters, each with a distinct personality, bringing differing scenarios to the tale, which add interest and perspective to familiar everyday challenges. Engaging and true to life, Butternut Summer offers a story not limited just to a beach read.
New york Journal of Books, July 14, 2014
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In the highly anticipated second novel of the Butternut Lake Trilogy, McNear once again draws readers deeply into the lives of her characters. Butternut Summer is a thoughtful examination of the pleasure and pain of love and the strength of the family bond and will leave fans eagerly awaiting the triptych’s final installment.
— Carol Gladstein, Booklist, Aug 1, 2014