Undercover operations Abolitionists African American families African Americans Antidotes Bataan Death March, Philippines, 1942 Civilization Description and travel Epic poetry, English (Old) Gods, Egyptian Hostages Investigation Kangaroos Male friendship Man-woman relationships McClane, John (Fictitious character) Middle Ages Murder Northmen Prisoners and prisons Prisoners and prisons, Japanese Raids (Military science) Scientists Slavery Superheroes Terrorists Video recordings for the hearing impaired Vikings World War, 1939-1945