Text ( visual ) : unmediated World at war, 1944 / by Mary Pope Osborne ; illustrated by Sal Murdocca. -- : pbk. -- New York : Random House , c2015. -- 182 p. : ill., ports. ; 20 cm. -- (Magic tree house super edition ; #1 ; A stepping stone book). -- "Previously published as Danger in the darkest hour". -- ISBN 9780553508857 ; (BC14083944) ; https://ci.nii.ac.jp/ncid/BC14083944 Author Heading(s): Osborne, Mary Pope ; Murdocca, Sal. -- Classification(s): DC23 : 813.54. -- Subject Heading(s): LCSH : Jack (Fictitious character from Osborne) -- Juvenile fiction ; LCSH : Annie (Fictitious character from Osborne) -- Juvenile fiction ; LCSH : World War, 1939-1945 -- Campaigns -- France -- Normandy -- Juvenile fiction ; LCSH : Adventure stories ; LCSH : Children's stories