Escaping Mr Sin's attack, Leela follows him & Chang back to their lair under the Palace theater, the Doctor and Litefoot in hot pursuit. After attacking Weng-Chiang, she finds herself back in the sewer being chased by the vicious giant rat. Written by
Did You Know?
Recording in the sewer sets proved problematic, as imperfect waterproofing resulted in severe leaking through the studio floor onto The BBC switchboard. These sequences were also difficult for Louise Jameson
, who was suffering from glandular fever. Not only did she have to contend with thrashing about in the water, but she discovered that the undergarments which made up her costume became partly transparent when damp. See more
A headline on the newspaper lining Litefoot's linen basket mentions Denis Healey, who was Chancellor when the episode was filmed, some 90 years after it was set. See more
Haven't you slept?
Sleep is for tortoises.