A Basilisk's egg was actually a simple chicken egg hatched under a toad, thus breeding the deadly King of Serpents. This method was first discovered by Herpo the Foul, and was banned since Medieval times. The practice could be easily hidden when the Department for the Regulation and Control of Magical Creatures came to check, by simply removing the egg from the toad. The presence of a full moon could induce basilisk eggs to hatch early if given certain other circumstances.
Known Hatched Eggs
Behind the scenes
- Alastor Moody believed, in paranoia, that one of his birthday presents was a cleverly disguised basilisk egg and smashed it apart before realising it was a carriage clock.
- Harry Potter and the Chamber of Secrets (First mentioned)
- Harry Potter and the Goblet of Fire (Mentioned only)
- Fantastic Beasts and Where to Find Them (Mentioned only)
- Fantastic Beasts and Where to Find Them: Illustrated Edition (First appearance)