"A Basilisk has a murderous stare, and all who are fixed with the beam of its eye shall suffer instant death." Harry quoted a line from one of his favourite Magical Creature books, Most Macabre Monstrosities. Only a few copies were known to exist still, the Riddle Library had one, another one was actually in the restricted section in the Hogwarts library. It was written by one of the first notable Parselmouths of history, one of Salazar Slytherin’s ancient ancestors from Greece. Herpo the Foul. He was also the one, who after years of experimentation, hatched the first-ever recorded Basilisk.