Tony Robinson and science journalist Becky McCall continue their investigations into past paranormal events with a look at one of the most controversial archaeological claims of the 20th century in The Ghosts of Glastonbury Abbey. In the early part of last century, respected antiquarian Frederick Bligh Bond published details of his excavations at Glastonbury Abbey and then sensationally claimed they were guided by communications from dead monks. Bligh's archaeological discoveries were impressive but could he have located the buildings he found without spirit help? Enlisting the help of historians, scientists and archaeologists, Robinson and McCall try to get to the bottom of Bond's sensational story. The final programme airs tomorrow.