Sacajawea is an American historical fiction novel written by Anna Lee Waldo as a fictionalized biography of Sacajawea, the Shoshone guide employed by Lewis and Clark. Published by Avon Books in 1979, portions of the novel were plagiarized from works by Charles McNichols, Frank Waters, Benjamin Capps, Vardis Fisher, Frederick Manfred, among others. A revised edition, containing significant changes to the original text, was published in May 1984.