The Mystery of the Third Seal — Margaret Pearce

James Tadworthy lives in a post-holocaust society in which there are no wars, no crime no pollution, no disease and no work. Everyone lives in perfect harmony with their tamed environment and all knowledge is controlled by the Shepherds, a group who selflessly dedicate their lives to humanity's welfare and best interests. But when Tadworthy finds out the Shepherds' shocking and closely-guarded secret, he discovers that beneath the surface of his peaceful community is a world of violence and intrigue. He is launched on a dangerous quest through a labyrinth of underground passages to discover that the mysterious Third Seal is an airlock to the closely guarded secret of the hidden learning of the past. And his ideal society will never be the same again.