Samuel Pintel, 87, was evacuated from the house in Izieu, in the Ain mountains, before the roundup organized by Klaus Barbie in April 1944. His book “l’Enfant d'Izieu” (HarperCollins, 208 p., 19.90 euros), released on March 20, is a poignant testimony from a 6-year-old boy who had to let go of his mother's hand in Annecy, during of a raid, to take that of an unknown woman helping him to hide.