“Klages makes an impressive debut with an ambitious, meticulously researched novel set during WWII. Writing from the points of view of two displaced children, she successfully recreates life at Los Alamos Camp, where scientists and mathematicians converge with their families to construct and test the first nuclear bomb.”—Publishers Weekly, starred review

"Cameo appearances are made by such famous names as Richard Feynman (he helps Dewey build a radio) and Robert Oppenheimer, but the story, an intense but accessible page-turner, firmly belongs to the girls and their families; history and story are drawn together with confidence." -The Horn Book Magazine, starred review