The explorers are three young people from London: Jane Seymour , a shorthand typist: John Hancock , a medical student; and Brian Ettlinger , a public-school boy. Their destinations are Australia, British Guiana, and Zanzibar, and their guides are June Beasley of Sydney, Australia:
Richard Allsopp , a student from Georgetown, British Guiana; and Juma bin Aley , a student from Zanzibar. Douglas Allan is in charge of the expedition