Atlantis…Avalon..Lemuria and Lyonesse; the country of the Amazons, the kingdom of Prester John and the realm of the Queen of Sheba… Stories of the lost or undiscovered worlds of antiquity have fascinated us through the ages – and will certainly continue to do so. The author examines both the scientific and the mystical of the problem  of historical or legendary lost worlds and sets out the evidence for the reader to asse4ss fact and fiction. With medieval maps and images.