I can imagine the look of incredulity on the faces of a group of world savvy PCs as they see the scabrous and rotting head of the beast breach the surface of the ocean, zombies and skeletons spilling from it's jaws to attack their ship. RAAAAAWR! Go to Comment
Oh, and to be overly technical, wouldn't it be a Necrocetacean? A Necronautilus
would be an undead squidlike thing with a shell.. :)
But it is a cooler name and this did not affect my vote at all... Go to Comment
The Captain scowled. "You ask what it is we hunt? 'Tis a great whale, but pale and bloated in death! It be no natural beast, but an evil that travels the seas, with death itself riding within! As long as sinew clings to bone, I'll give chase, for I'll ne'er rest 'til I have destroyed the thing that is...
Ewww. The Undead. But undead sporting a rather unexpected ride. I guess I would remove the crew chamber as well, unless that's where the necromancer hangs his(her) hat and plots a course for destruction.
The PCs encounter a strange set of artistic drawings done on the ground as they pass through a city. It has been done in chalks and no one saw who did it. Wizards might recognize the writing within the colored square as an obscure and dead language with a message stating that a prominent wizard and a retired bard have discovered how to populate Arcadia with the spirits of the dead!
Is it a local hoax, or are the PCs crossing the path of a very deranged and possibly dangerous mage?