Rutka Laskier, a 14-year-old Jewish girl in the town of Bedzin in Poland, died in Auschwitz in 1943. But she left behind a notebook in which she recorded her thoughts, fears and dreams. Some are the musings of any adolescent girl; others are the despairing cries of an individual caught in history's vortex. Now, after 60 years in the keeping of a friend, that notebook has been recovered - and it opens a unique, moving window into the everyday life of Polish Jews caught in the throes of Adolf Hitler's Final Solution. Hailed as the " Polish Anne Frank," Rutka Laskier now speaks to us across the decades: a witness to evil, a voice for the silent, and a timeless symbol of resolve. The editors of TIME add annotations, photos, maps, and quotations that help bring this tragic era into compelling focus for today's readers.