I'm recommending this :Sweet Salt Air by Barbara Delinsky

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It's my first novel by her and it intrigued me in it's blurb. It's beach read I found by way of BookBub. From one of the reviews "Sweet Salt Air takes place on a small island in Maine (sadly I believe it is fictitious) where two friends come together for the first time in many years for a summer. Together they write a cookbook while sorting through the house and getting it ready for sale. Each friend is in a different place in life - Nicole is hiding a secret about her husband while putting a brave face on for the world to see while Charlotte is a freelance writer traveling the world but has a secret she's kept from Nicole since their last summer on the island."

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Sounds fun. Just placed a hold for this at my library!