Edgar Rice Burroughs

This installment shifts focus from John Carter and Dejah Thoris, protagonists of the first three books in the series, to their son Carthoris, prince of Helium, and to Thuvia, princess of Ptarth, and follows Carthoris' efforts to win the heart of Thuvia, who will have nothing to do with him. When Thuvia is kidnapped Carthoris is presented with an opportunity -- throw in an airship battle, lost cities, savage creatures, and the fabulous phantom bowmen of Lothar, and you have thrills, chills, and high adventure of the best kind.

Here is a story that has lain dormant for seven hundred years. At first it was suppressed by one of the Plantagenet kings of England. Later it was forgotten. I happened to dig it up by accident. The accident being the relationship of my wife's cousin to a certain Father Superior in a very ancient monastery in Europe.

Set in the fictional European kingdom of Lutha, the protagonist is a young American named Barney Custer, of Beatrice, Nebraska, who is the son of an American farmer and a runaway Luthan princess, Victoria Rubinroth. Unaware of his royal blood, much less that he is a dead ringer for his relative Leopold, the current king of Lutha, Barney visits Lutha on the eve of the First World War to see for himself his mother's native land. As he arrives in Lutha, King Leopold has just escaped from his ten years' imprisonment at the hands of his scheming uncle, Prince Peter of Blentz. Much to his own and everyone else's confusion, Barney is naturally mistaken for the king, leading to numerous complications.

In Caprona, the land that time forgot, creatures from the world's savage past live on-dinosaurs, cavemen, and the last remnants of Bronze Age barbarians. But the claws and fangs and sharp-edged spears guard a terrible secret. Out of Time's Abyss is the story of a man who dares to uncover that secret. Crossing the last terrible barrier to the heart of Caprona, he enters a world of wonder, terror, and danger beyond imagining.