Title: Top Secret
Description: Three children build a space-craft and embark on a journey to the Moon.
Subjects: Adventure, Aliens, Astronaut, Children, Children's fiction, Children's 4-8, Children's books, Fiction, Lunar, Martian, Martians, Moon, Moon landing, Rocket, Science Fiction, Space, Space flight, Spaceship, Space ship
Places: London, The Moon, Mars
Time periods: 1960s