Complex sentence: He observed that she admitted inventing dialogue for her book "Mules and Men" in a letter to Ruth Benedict and described fabricating the "Mules and Men" story of rival voodoo doctors as a child in her later autobiography.
Split into simpler sentences: He observed that she admitted inventing dialogue for her book "Mules and Men" in a letter to Ruth Benedict. She described fabricating the "Mules and Men" story of rival voodoo doctors as a child in her later autobiography.