Beyond the Las Vegas Strip’s dazzling lights, something darker awaits Sin City visitors who venture into celebrity ghost hunter Zak Bagans’s Haunted Museum. There, the spooky memorabilia ranges from Ted Bundy’s glasses to fragments of Charles Manson’s bones, scraped from the incinerator after his body was cremated. There’s also a rather plain-looking mirror, about two feet tall and shaped like a tombstone. Bagans has said that, of his entire collection, it’s one of the things that unnerves him the most. Allegedly, the mirror once belonged to Dracula actor Bela Lugosi….