As with any mysterious event, it’s often said that we should look to the simplest solution as being most likely the right one. The idea that when presented with competing hypotheses that make the same predictions, the solution with the fewest assumptions should be chosen is usually attributed to the principle of “Occam’s razor.” But what happens if we try to apply this cure-all of an axiom to explain a medieval legend that has few clues associated with it? In Part Two of our series on The Pied Piper of Hamelin, we’ll explore several of the leading hypotheses on this bizarre event such as the plague and Murine Typhus, forced emigration, the “Dancing Madness” and ergotism, slavery, the Crusades and even alien abduction. And if we return to applying “Occam’s razor” to this mystery from the Middle Ages and accept the contemporary accounts?