Emeritus Professor Liam McWorther gives a lecture to some senior African-History freaks, and mentions that explorer and medical David Livingstone is his personal hero. Before he can say “Dr. Livingstone, I presume?“, McWorther’s standing in front of the missionary martyr – and is delighted. He thinks this is the greatest thing his student and senior magician Steve Valentine’s ever done. McWorther tells Dr. Livingstone about certain things concerning the sources of the River Nile, but when the Professor dares to say Livingstone’s expeditions were hardly models of order and organization, Dr. Livingstone decides McWorther’s a Catholic spy and should therefore travel back as fast as possible. Unfortunately magician Valentine passes away in the same moment, and Livingstone’s Victorian key doesn’t fit the keyhole of the Magic Door of Space and Time.