Chelko

Chelko is Krukoslik's son, whose first and only appearance was as a minor character in Ghost Hunter. We saw him help load the Mountain Hare Clan sleds, with those "ghost hunter" dogs, as his father helped guide Torak to the Mountain of Ghosts. Chelko is one of those characters who you could read the whole series extra-enthusiastically and not remember at all. And not just not remembering anything about him, forgetting he even existed. I saw his name and assumed he was a character from the sequels.