Biweekly Monster-Rust Mollusc (AD&D)

FREQUENCY: Rare
NO. APPEARING: 1
ARMOR CLASS: 2
MOVE: 3″//12″
HIT DICE: 4
% IN LAIR: 30%
TREASURE TYPE: Q (x10)
NO. OF ATTACKS: 2
DAMAGE/ATTACK: Nil
SPECIAL ATTACKS: See below
SPECIAL DEFENSE: See below
MAGIC RESISTANCE: Standard
INTELLIGENCE: Animal
ALIGNMENT: Neutral
SIZE: M
PSIONIC ABILITY: Nil
Attack/Defense Modes: Nil

These marine relatives of the rust monster resemble an octopus with dark red hues. They frequent the sea beds of perilous waters in search of metals aboard sunken ships, devouring anchors, chains, cannon, balls, and metallic cargo if it can be found, especially ferrous metal. They are encountered by adventurers principally while diving on wrecks to retrieve the treasure the rust mollusc also seeks or when dropping anchor in their hunting grounds. A ship that anchors near a ship graveyard too long can easily join it as it drifts off its point when its anchor is devoured. Those ships that anchor only briefly may still find a rust mollusc has accompanied the anchor to the surface and now endangers cannons and other ship supplies.

The rust mollusc makes a “to hit” roll to touch a metallic object with its sucker covered tentacles. If it succeeds, the metal rusts and falls to pieces which can then be easily eaten. Magical items have a 10% per plus to resist the effects. If the rust mollusc is struck with a metal weapon (such as a sword, mace, or axe) it is affected as if struck by a tentacle. If seriously wounded in water, the rust mollusc can spray a cloud of ink that blocks visibility in a 3″ radius and escape. Metal in this cloud for 3 rounds suffers the effects of being struck by a tentacle.

Rust molluscs can sense ferrous metal in water up to a distance of 18″ and on land to a distance of 6″. Like rust monsters, they are more interested in feeding than chasing adventurers are will stop to consume abandoned metal rather than pursue, provided the decoy has their preferred high iron content.

The wife had this idea last night and I love it. I guess she suggested some kind of monster that grabs onto anchors and then comes up onto the ship, but in my lame way I had to justify why a monster would seek out anchors and now it joins the rust moth as a relative to rust monsters.

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