Heimo Kantor was a known murderer who regularly worked with Ralf Blunden and Little Yaxa. The three were killed by Geralt at the inn in Anchor while tracking Ciri and Yennefer. He is described a tall and very thin, with oily, shining black hair.
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'Your denial is too swift,' barked the third man, as tall and thin as a beanpole. His hair was black and glistened as if covered in grease.'
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— pg(s). 41, Time of Contempt (UK edition)