"Extraordinary Explorers" is a new three-volume series that documents the lives and deeds of well-known explorers as well as some of the travellers and explorers who do not appear in traditional history books. Each book focuses on one extraordinary aspect of exploration. This book profiles courageous women such as Sacajawea, a Native American who guided the Lewis and Clark expedition; Mary Kingsley, an Englishwoman notable for her enlightened, modern attitude toward the African cultures she encountered in her travels alone in West Africa; Alexandra David-Neel, a Frenchwoman who crossed the Himalayas and travelled disguised as a beggar to Lahsa, where foreigners were outlawed; Louise Arner Boyd, an American who led seven expeditions into Greenland and the Arctic; and Susanna Moodie's immigration and life in early 19th-century Canada.