Author Colin Shepherd, a playwright and editor at Portland (ME) Magazine, will read from his historical novel, The Museum of Human Beings, on Saturday, March 20, at noon, at the South End Library. The novel is the story of Jean-Baptiste Charbonneau, the son of Sacagawea, who, as an infant, was strapped to his mother's back during the Lewis and Clark expedition across the United States in the early 19th century. Later, Jean-Baptiste traveled throughout Europe before returning to enter the fur trade. He scouted for explorers and helped guide the Mormon Battalion to California before becoming an alcalde, a hotel clerk, and a gold miner. Lured to the Montana goldfields following the Civil War, he died en route, near Danner, Ore., in 1866. The South End library has one copy of the book available for borrowing but other copies may be available for sale at the event.