Mother-son team Jonah and Jeanette Winter bring to life one of the most secretive scientific projects in history--the creation of the atomic bomb--in this powerful and moving picture book. At a former boy's school in the remote desert of New Mexico, the world's greatest scientists have gathered to work on the "Gadget," an invention so dangerous and classified they cannot even call it by its real name. They work hard, surrounded by top security and sworn to secrecy, until finally they take their creation far out into the desert to test it, and afterward the world will never be the same.

退換貨說明：

會員均享有10天的商品猶豫期（含例假日）。若您欲辦理退換貨，請於取得該商品10日內寄回。

辦理退換貨時，請保持商品全新狀態與完整包裝（商品本身、贈品、贈票、附件、內外包裝、保證書、隨貨文件等）一併寄回。若退回商品無法回復原狀者，可能影響退換貨權利之行使或須負擔部分費用。