49 books • 10 series
The Mysteries of Giant Human Like Creaures (Unsolved!)
Mysteries of Water Monsters (Unsolved!)
Mysteries of the Bermuda Triangle (Unsolved!)
Mysteries of Alien Visitors and Abductions (Unsolved!)
The Mystery of the Ghosts of Flight 401 (Unsolved!)
Mysteries of Giant Humanlike Creatures (Unsolved!)
Mysteries of Alien Visitors (Unsolved!)
Mysteries of UFOs (Unsolved!)
Unsolved!
A Stopover in Venice
Christianity (World Religions Today)
Rabbit (See How They Grow)
Buddhism (World Religions Today)
Horses and Ponies (See How They Grow)
Dog (See How They Grow)
See How They Grow: Cat (See How They Grow)
Melbourne (Great Cities of the World)
Shanghai (Great Cities of the World S.) (Great Cities of the World)
Growing Up in the Eighties (Growing Up)
Growing Up in the Seventies (Growing Up)
Growing Up in the Sixties (Growing Up)
Growing Up in the Fifties (Growing Up)
Growing Up in the Thirties (Growing Up)
Growing Up in the Forties (Growing Up)