Harry twisted around and found a grindylow, a small, horned demon with sickly green skin and long, thin fingers. It cackled as it tried to pull Harry down to the bottom of the lake, but in anger Harry lashed his other leg out, kicking it right in the face with the bottom of his foot. The impact sent the grindylow swirling backwards, releasing its grip on his ankle but in that time, two more grindylows appeared and started harassing Harry.