12,000 B.C. They were four trained scientists, each of them skilled in several disciplines - because this was an opportunity that would never occur again. There would never be another chance for men form the world of 2070 A.D. to examine in person the world of 12,000 B.C. What they learned and taped would be the only record ever made of this dim, enigmatic period of prehistory. But absolutely no one in the world of 2070 or in the borrowed time of 12,000 B.C. could have imagined what the tapes would reveal... A superb novel of adventure and intrigue in a vanished era Cover illustration: Geoff Cummings

Opar...the Atlantean colony in the heart of Tarzan's Africa. Opar...in the words of Edgar Rice Burroughs, a hidden city of "gold and silver, ivory and apes, and peacocks." Opar...is the starting point of this fabulous novel of twelve thousand years past, when Africa had in inland sea and a high civilization bloomed along its forgotten shores, when lost empires flew their time-vanished banners, and deeds of daring were commonplace.

Flight to Opar is a fantasy novel by Philip José Farmer, first published in paperback by DAW Books in June 1976, and reprinted twice through 1983. The first British edition was published by Magnum in 1977.[1] The novel is a sequel to Farmer's earlier novel Hadon of Ancient Opar. Both books purport to fill in some of the ancient history of the lost city of Opar, created by Edgar Rice Burroughs as a setting for his Tarzan series.