In We Were Liars by E. Lockhart, Candence Sinclair goes back to her grandfather's beach house for summer 17 (the age she is when certain summer arrives) after going on a long vacation with her father the summer before. When she comes back she has issues remembering things from the island after suffering head trauma two years prior. She falls in love with her beloved Gat all over again, and their friends avoid telling her what she can't remember. One night the memory of what caused the head trauma destroyed her. She remembered that her, and her friends had lit fire to her grandfather's house to stop he mom and her aunts from arguing about who gets what when her grandfather dies. She remembers about the dogs that died in the fire, and her friends
