Ever since the baby dragon Norbert was sent away by Harry, Hagrid had been in low spirits. He had even written a few letters to Charlie in Romania, asking about Norbert's recent life. Because of the great distance, it took a very long time to receive a reply each time.
However, a troubling event in the Forbidden Forest forced Hagrid to pull his attention away from Norbert and refocus on his own duties.
Not long ago, Hagrid discovered a patch of silver blood in the Forbidden Forest. In the gamekeeper's limited memory, among all the magical creatures living in the Forbidden Forest, only the blood of a unicorn was this unique silver-white.
Chapter 420