Demon-whales

Demon whales are huge, carnivorous white or gray creatures that live in the Ice Bay of Forochel. Their five-inch teeth can tear steel, and they think it no problem to swallow a man whole (and, in spite of old tales, it is unlikely that a man would survive long in the roiling acids of the demon whale's stomach). They often shatter whale boats or overturn larger vessels.

Detailed Description
Demon whales are bloated monstrosities that hunt the Bay of Forochel and the Helkëar, usually seeking other whales as prey (though they are not adverse to attacking whalers). Their five-inch teeth can bite through steel, and have been known to rip the side out of a whaling ship. The demon whale generally feeds in fits and start, gorging itself for a week or two, then remaining uniterested in food for months at a time. Unfortunately for whalers, demon whales do not all keep to the same feeding schedule. So, while one whale may be disinteredted in the passing ships, another may be ravenously ripping the sides off a whaler in an attempt to devour its whale-meat and crew.