Book excerpt: Edgar Allan Poe has had a busy afterlife. The author of "The Raven" and "The Tell-Tale Heart" might have died back in 1849, but some claim that did not stop him from composing poetry for another four decades. Others say he still makes appearances in no fewer than five cities, and that his ghost is a regular at a couple of different taverns, one of which saves a seat for him. Like a character from one of his short stories, Poe refuses to stay buried. Author Christopher Semtner explores the ghost stories and hauntings associated with his life--from the supernatural legends that inspired his writing to the alleged paranormal activity inspired by those terror tales.