The BBC Press Office have recently released the official synopsis for the fifth story from the current third series of The Sarah Jane Adventures, Mona Lisa's Revenge. Part one of the story sees strange forces bring the Mona Lisa to life, as the adventure series starring Elisabeth Sladen continues. Clyde's proudest day turns into a nightmare when he discovers that fine art can be dangerous and, when a school trip descends into disaster, the gang find themselves trapped without Sarah Jane's help, as the awesome abomination stirs. The concluding part to this story, part two, sees Luke and Rani investigate the myth of the dreaded abomination, as the two-part drama concludes. With Sarah Jane trapped and beyond help, everything now depends upon Clyde. Mona Lisa vows to release her terrifying brother from his age-old prison, but only Clyde has the key. Mona Lisa's Revenge will air in two parts on Thursday the twelfth of November and Friday the thirteenth of November, with both parts airing at 4:35pm on BBC One and BBC HD. The third series of The Sarah Jane Adventures stars Elisabeth Sladen, Thomas Knight, Daniel Anthony and Anjli Mohindra. The Sarah Jane Adventures continues this Thursday and Friday.