Jarlaxle's submarine, the Scarlet Marpenoth, is mounted underneath the Eyecatcher and can be seen only by creatures under the water. Jarlaxle retreats here if the Eyecatcher comes under attack.

The magic that conceals the true appearance of drow aboard Jarlaxle's ships doesn't extend to the Scarlet Marpenoth . Characters who encounter drow while sneaking around the submarine are questioned. If the drow don't get the answers they want, they attack. Any nearby drow who hear a fight break out will investigate and team up to repel boarders.

Submarine Features

The Scarlet Marpenoth has AC 20, 300 hit points, a damage threshold of 15, and immunity to poison and psychic damage. The submarine's structural integrity fails when the vessel drops to 0 hit points, whereupon it floods and sinks.

The submarine has the following general features:

  • Interior spaces are unlit. (The drow rely on darkvision to see.)
  • All furnishings and features are bolted down.
  • Chambers are 8 feet high, with 6-foot-high passages and doorways connecting them.
  • Air magically circulates through a complex ventilation system and small metal grills set into the floors.
  • Doors are made of steel and have AC 19, 27 hit points, a damage threshold of 10, and immunity to poison and psychic damage. A door's lock can be picked by a character who makes a successful DC 18 Dexterity check using thieves' tools. A door can be forced open by a character who succeeds on a DC 25 Strength (Athletics) check. Jarlaxle has keys to all locked doors. All doors are airtight while closed.

Map of the Scarlet Marpenoth

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