• On first meeting ‘Friday’, the Doctor says he knows the Ice Warriors of old: “I was once an honorary guardian of the Tythonian Hive [sic: as scripted].” Could this be a reference to an outpost on the home planet of Tythonian ambassador Erato, from The Creature from the Pit (1979); or could it be somehow connected to the so-called “Typhonian Beast”, aka contemporaneous Mars tomb-dweller Sutekh, from Pyramids of Mars (1975)? Surely it refers to Tithonius Lacus (‘Lake Tithon’) – the Greek mythological name given by the Italian astronomer Giovanni Schiaparelli (1835-1910) to a geographical feature at Mars latitude -4.94° N and longitude 275.0° E…
