Skullhaven is an asteroid in the Flumphaven asteroid belt that is shaped like a giant skull. Whether this is a freak of nature or actually the skull of a gigantic creature is impossible to say.
Size: A (3 miles in diameter)
Shape: Irregular
Type: Earth
Atmosphere: rotten
Wilderness: none
Hazards: Instability, undead
Population: A small pirate enclave of 11 individuals, led by a Neogi who has enslaved the others (dwarves, halflings, gnomes).
Secrets: Inside the labyrinthine cave system of Skullhaven are the ruins of a long-gone civilisation. Pirates avoid the ruins because they are haunted by undead.