The leviathan is a hideous beast that lives in a cave near Mhaldor on Sartan's Island. It was originally summoned in the year 339 AF by Mhaldorian ritualists and then slain, its corpse used to bridge the gap over Gruu'n Chasm.
So terrifying is this immense monster that it is impossible to focus on its features completely. It is notorious for killing newbies who become lost on their way to Mhaldor, and its cave is often littered with odds and ends dropped by these poor souls.