TEXT: UNDERWORLD WANDERING MONSTER TABLE
  for Geoffrey McKinney's Carcosa
  by Mattias Wikström
  Level
  Table 1
  Table 2
  Table 3
  Table 4
  Table 5
  Table 6
  1
  Roll
  1-3
  4-5
  6
  2
  1-2
  3-4
  5-6
  3
  1
  2-3
  4-5
  6
  4-5
  1
  2-3
  4-5
  6
  6-7
  1
  2-3
  4-6
  8-9
  1
  2-4
  5-6
  10+
  1-2
  4-6
  If a monster marked with an asterisk is rolled, there is a 50% chance that the next 
  wandering monster (on that level) will be of the same type.
  TABLE 1
  Roll
  1
  Giant Scarabs
  2
  Giant Centipedes
  3
  Giant Botflies
  4
  Barbarians*
  5
  Skeletons
  6
  Random Spawn of Shub-Niggurath (HD 2)
  TABLE 2
  Roll
  1
  Tomb Robbers*
  2
  Species 23750
  3
  Zombies
  4
  Mutants*
  5
  Cannibals*
  6
  Deep Ones*
  7
  Giant Worms
  8
  Random Spawn of Shub-Niggurath (HD 3)
  TABLE 3
  Roll
  1
  Giant Jungle Ants*
  2
  Giant Snake
  3
  Ghouls*
  4
  Mi-Go*
  5
  Diseased Guardians
  6
  Random Spawn of Shub-Niggurath (HD 4)
  1
  
  TABLE 4
  Roll
  1
  Gray Ooze
  2
  Mummies
  3
  Unquiet Worms
  4
  Amphibious Ones
  5
  Ochre Jelly
  6
  Random Spawn of Shub-Niggurath (HD 5)
  TABLE 5
  Roll
  1
  Great Race*
  2
  Black Pudding
  3
  Mummy Brain
  4
  Random Spawn of Shub-Niggurath (HD 7)
  TABLE 6
  Roll
  1
  Purple Worms
  2
  Primordial Ones*
  3
  Shoggoths*
  4
  Green Ooze Pool
  5
  Spawn of Yog-Sothoth
  6
  Random Spawn of Shub-Niggurath (HD 9)
  2
  
SOURCE: textdata/thevault/Carcosa/Wandering Underworld.pdf