New York: The Viking Press, (2006.). SIGNED first edition - The author's first novel for young adults set at Los Alamos, New Mexico in 1943 where 11 year old Dewey's father is one of the scientists working on "the gadget." SIGNED on the title page. Winner of the 2007 Scott O'Dell Award for Historical Fiction and Judy Lopez Award for Childrens Literature. Author's note. 321 pp.