Roll
Encounter
Ref.
01-60
Nothing
 
61-64
1D3 Monstrous Centipedes
MM 287
65-68
1D4 Dire Rats
MM 64
69-72
1D4 Giant Fire Beetles
MM 285
73-76
1D3 Small Monstrous Scorpions
MM 287
77-80
1D3 Small Monstrous Spiders
MM 288
81-84
1 Dark Mantle
MM 38
85-88
1D4+1 Tiny Viper Snakes
MM 280
89-92
1D3 Stirges
MM 236
93-96
1 Spider Swarm
MM 240
97-100
Crag (Ref Save 10, Save Fail = Ref or Str
Check 20 to release your foot from the crack