The Summer Guests by Tess Gerritsen

In The Spy Coast, one of my favorite books of 2025 to date, Gerritsen introduced an appealing group of retirees, led by former spy, Maggie Bird. After years of restless traveling, trying to escape painful memories, Maggie wound up in Purity, Maine, where she had several friends from her CIA days. 

The Spy Coast by Tess Gerritsen

Maggie Bird is retired and living a quiet life in Purity, Maine with a few chickens and a small group of friends nearby when she gets an unexpected and unwelcome visitor. A woman who calls herself Bianca wants Maggie’s help finding a colleague called Diana from her CIA past, last seen in Bangkok.