Basilisk

Travelers sometimes find objects that look like pieces of remarkably lifelike stone carvings of wildlife. Missing parts appear to have been bitten off. Seasoned explorers regard such relics as warnings, knowing that the basilisk that created them is likely to be nearby. 

Adaptable Predators

Basilisks thrive in arid, temperate, or tropical climates. They lair in caves or other sheltered sites. Most often, basilisks are encountered underground though they can be found on the surface in rare instances. These magical predators have eight legs, which they crawl upon and some variations can even use them to climb difficult surfaces.
A basilisk born and raised in captivity can be domesticated and trained. Such a trained basilisk knows how to avoid meeting the eyes of those its master wishes to protect from its gaze, but it makes a daunting guardian beast. Because of this use, basilisk eggs are highly prized.

Gaze of Stone

Basilisks are ponderous for hunting creatures, but they needn’t chase prey. Meeting a basilisk’s supernatural gaze can be enough to affect a rapid transformation, transforming a victim into porous stone. Basilisks, with their strong jaws, are able to consume the stone. The stone returns to organic form in the basilisk’s gullet.
Some alchemists are said to know how to process the basilisk’s gullet and the fluids contained within. Properly handled, the gullet produces an oil that can return petrified creatures to flesh and life. Unfortunately for such a victim, any parts lost in stone form remain absent if the creature revives. Revivification using the oil is impossible if a vital part of the petrified creature, such as its head, is detached.

Basilisk Loot

• 1 Basilisk Eye. When held, a creature can use the eye to cast the spell Flesh to Stone (save DC 12). The casting of this spell consumes the eye.
• 1 Basilisk Fang. Acts as a dagger. Can be crafted (Smith's Tools) into a dagger that deals an additional 3 (1d6) poison damage on a hit.
• 1 Basilisk Stomach. No immediate use. Can be mastercrafted (Alchemist's Supplies) into a Stone Salve, which ends the petrified condition on a creature it is applied to.