Hatter (Alice's Adventures in Wonderland) door of his shop wearing a top hat. Sir John Tenniel is reported to have come to Oxford especially to sketch him for his illustrations. There is no evidence for this claim, however, in either Carroll's letters or diaries. In the chapter "A Mad Tea Party", the Hatter asks a much-noted riddle "why is a raven like a writing desk?" When Alice gives up trying to figure out why, the Hatter admits "I haven't the slightest idea!". Carroll originally intended the riddle to be without an answer, but after many requests from readers, he and others—including puzzle expert Sam Loyd—suggested
Woman with a Raven at an Abyss century art historian Albert Boime writes that the image presents "a wild, disheveled woman at the edge of a precipitous cliff, grasping a branch like an oar, while a raven claws and a serpent slithers around the other end of her stick." Friedrich later depicted ominous ravens in his "The Tree of Crows" c. 1822 painting, where the birds are shown flying before a twisted oak tree and neolithic burial ground. Woman with a Raven at an Abyss Woman with a Raven at an Abyss (or Woman with a Raven on a Precipice; German: Die Frau mit dem Raben am