Book excerpt: Some of the most notorious criminals in US history were kept under lock and key on the foggy, craggy shores of Alcatraz Island. Al Capone, “Machine Gun” Kelly, and the “Birdman of Alcatraz” Robert Shroud all haunted the dank cells of the infamous prison while they were alive. But do their spirits still remain? Readers will be ferried across San Francisco Bay to explore the history—and hauntings—of Alcatraz. Including the deep historical past of the California prison, the main content will engage readers while creepy photographs will invite them into “the hole” and the prison's hidden tunnels. Detailed sidebars offer even more ghostly sightings to readers who dare probe the past of spooky Alcatraz.