Book excerpt: Henry Morton Stanley was a cruel imperialist - a bad man of Africa. Or so we think: but as Tim Jeal brilliantly shows, the reality of Stanley's life is yet more extraordinary. Few people know of his dazzling trans-Africa journey, a heart-breaking epic of human endurance which solved virtually every one of the continent's remaining geographical puzzles. With new documentary evidence, Jeal explores the very nature of exploration and reappraises a reputation, in a way that is both moving and truly majestic.