"The Cask of Amontillado" by Edgar Allan Poe, is a short story inspired by true events that took place on Castle Island, a former military fort off of Boston Harbor, in Massachusetts. When Poe was stationed there as young cadet in the Army, he found a peculiar gravestone. After some inquiry, he learned a story of a man who had been walled up alive. Forbidden by his commander to ever repeat the particulars, Poe took the plot line and changed the setting and characters.