Basilisks

A basilisk is a rare serpent that dwells within the depths of Arcenor's vast oceans. Possibly over 33 metres (108 ft) in length and 180 metric tons (200 short tons) or more in weight, it is the largest creature currently in existence.

They do not surface often, but when they do they have been known to wreck their fair share of ships. They possess lethal venom and retain the ability to breathe fire from their dragon ancestors.

In spite of their reputation, they do not dine on human flesh, and feed almost exclusively on krill. Most violent run-ins with ships occur during autumn and winter, during their mating season.