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Linus Pitt, is a Master Tutor and Lecturer in Natural History at the Academy in Oxenfurt. He is described as a short, thin man of uncertain age, dressed in a large, woolen and none-too-clean cloak pinned in place with a makeshift brooch. Geralt meets him on a barge in Blood of Elves where the two proceed to have quite an animated discussion of swamp monsters and fish.