Halloween 1636: sightings of the ghost of an old woman begin to be reported in the small English coastal town of Minehead, and a royal commission is sent to investigate. December 1640: a disgraced Protestant bishop is hanged in the Irish capital, Dublin, after being convicted of an "unspeakable" crime. In this remarkable piece of historical detective work, Peter Marshall sets out to uncover the intriguing links between these two seemingly unconnected...