 The painting on the professors side of the "wonderwall" is a  colorization of "The Passing of Arthur" [black and white  illustration] by Florence Harrison from Tennysons "Guinevere and  Other Poems". London: Blackie & Son, [1912]. The original  illustration has the caption "Morte dArthur"; it is not to be  confused with the color illustration with the same title, done by  the same artist for the same book.