Yes he dose, after scaring the Yeehats away from John Thornton's cabin Jack London writes that they past down the legend of the ghost dog.
Buck gets sold in Chapter Five of Jack London's "Call of the Wild." "Three Days passed, by which time Buck and his mates found how really tired and weak they were. Then, on the morning of the fourth day, two men from the States came along and bought, them, harness and all, for a song."
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern COTW-L-. That is, seven letter words with 1st letter C and 2nd letter O and 3rd letter T and 4th letter W and 6th letter L. In alphabetical order, they are: cotwals