Volcanic Wilderland Tomb:

Roll 1-D20 for every chamber entered into (there will be 1-D10 +3 chambers).
Needed roll for an encounter per chamber: 9+

%Roll:  Encounter:
01-10:   Organic, Moss`Chops
11-20:   Rat, Tomb
21-30:   Ratman, Undertomb
31-35:   Secret Chamber!
36-45:   Tomb of Unrest entrance found.
46-00:   Undead:    %Roll: Undead types:
                                 01-33:  Ghoul, UnderRot
                                 34-66:  Skeleton:     %Roll: Skeleton types:
                                                                   01-25:   Dragonman
                                                                   26-50:   Necromancer
                                                                   51-75:   Rampage
                                                                   76-00:   Ripple
                                 67-00:  Undead, Zombie, Greater