Basilisk

The mythical king of the serpents. The basilisk, or cockatrice, is a creature that is born from a spherical, yolkless egg, laid during the days of Sirius (the Dog Star) by a seven-year-old rooster and hatched by a toad.According to legend, there are two species of the creature. The first kind burns everything it approaches, and the second kind can kill every living thing with a mere glance. Both species are so dreadful that their breath wilts vegetation and shatters stones. It was even believed that if a man on horseback should try to kill it with a spear, the power of the poison conducted through the weapon would not only kill the rider, but the horse as well. The only way to kill a basilisk is by holding a mirror in front of its eyes, while avoiding to look directly at it. The moment the creature sees its own reflection, it will die of fright. However, even the basilisk has natural enemies. The weasel is immune to its glance and if it gets bitten it withdraws from the fight to eat some rue, the only plant that does not wither, and returns with renewed strength. A more dangerous enemy is the cock for should the basilisk hear it crow, it would die instantly.