Just then there was a sharp hiss, a very fierce hiss. Johnny Chuck felt the hair on his neck rise as it always did when he heard that hiss, and he wasn't at all surprised, when he turned his head, to find Mr. Blacksnake close by. Mr. Blacksnake glided swiftly up to the old log and coiled himself in front of the opening. Then he raised his head and ran out his tongue in the most impudent way.