How to Disappear Completely and Never Be Found

This is a very interesting and mysterious book about Margaret who is determined to solve the mystery of her fathers death. Her father drowned mysteriously and her mom ,Lizzie, chain smokes and sleeps most of the time and doesn't talk about dad. Margaret lives in an apartment in the Pacific northwest. She has a sister, Sophie, who is obsessed with `The Hardest Jigsaw Puzzle Ever Made'. Margaret's life is very boring until she meets Tina Louise who becomes her friend and inspires her to go to the strange mansion on the island where she found an unopened, mysterious package addressed to her mom four years ago. Margaret eventually listens to her, and after convincing Sophie she goes to the island to solve the mystery of her fathers death.