Archaeologists in Magdeburg, Germany, are about to open a stone tomb that has laid undisturbed for 500 years at the city’s cathedral. With any luck this monument will contain the remains of Edith of England, who had been queen of Germany more than 1,000 years ago. And while there’s a strong likelihood that this ancient grave will be empty, what the researchers find when they open the lead coffin astonishes them.