The entangled pasts of two ruling class New England families come to light over three summer days on an island in Maine in this extraordinary debut novel. 1964. The Hillsingers and the Quicks have shared the small Maine island of Seven for generations. Though technically family—Jim Hillsinger and Billy Quick married Park Avenue sisters Lila and Hannah Blackwell—they do not mix. Now, on the anniversary of Hannah’s death, Lila feels grief pulling her toward Billy. Jim, a spy recently ousted from the CIA, decides to carry out the threat Lila explicitly forbid: to banish their youngest son, twelve-year-old Catta, to the neighboring island of Baffin for twenty-four hours in an attempt to make a man out of him. Set during three summer days, Estep Nagy’s debut novel moves among the communities of Seven as longstanding tensions become tactical face-offs where anything is fair game for ammunition. Vividly capturing the rift between the cold warriors of Jim’s generation and the rebellious seekers of Catta’s, We Shall Not All Sleep is a richly told story of American class, family, and manipulation—a compelling portrait of a unique and privileged WASP stronghold on the brink of dissolution.