midnight
The Park Bears were denned up , but there were other fur-bearers about . High on the wood-pile sat a Yellow Red Fox in a magnificent coat . Another was in front of the house , and the keeper said that as many as a dozen came some days . And sometimes , he said , there also came a wonderful Silver Fox , a size bigger than the rest , black as coal , with eyes like yellow diamonds , and a silver frosting like little stars on his midnight fur . `` My ! but he 's a beauty . That skin would buy the best team of mules on the Yellowstone . ''