Family of Liars by E. Lockhart

Pre-loved hardcover 

The prequel to We Were Liars takes readers back to the story of another summer, another generation, and the secrets that will haunt them for decades to come.

A windswept private island off the coast of Massachusetts.
A hungry ocean, churning with secrets and sorrow.
A fiery, addicted heiress. An irresistible, unpredictable boy.
A summer of unforgivable betrayal and terrible mistakes.

Welcome back to the Sinclair family.
They were always liars.