The Basilisk dwells at the top of the Pilgrim’s Spire (25.31), turning mendicants to stone.
Seven dancers of the Shadow Ballet in the Grey Comedy are allegedly firebirds turned to stone by the Basilisk and then revived by Rosetta.
The author of the Unifying Theory of Blood speculates that the Basilisk or Medusa may be infected by elemental earth, and would turn to air in the sunlight.