Title: Black powder
Description: After his best friend is shot and killed, fourteen-year-old Langston borrows his science teacher's time machine and travels from Los Angeles in 2010 to Oxford, England, in 1278 to try to prevent Roger Bacon from publishing his formula for gunpowder.
Subjects: African Americans, Fiction, Grief, Firearms, Astronomy, Gunpowder, Time travel, History, Children's fiction, Time travel, fiction, Grief, fiction, African americans, fiction, Los angeles (calif.), fiction, Great britain, history, fiction
Places: Great Britain, Los Angeles (Calif.), Oxford (England)
People: Roger Bacon (1214?-1294)
Time periods: Edward I, 1272-1307