While exploring the Dungeon, and going through Catacombs, it might happen that your group forms Catacombs in a 4x4 block.
This special configuration is a Tomb.

The instant a Tomb is formed, the following occurs:

1. As with Catacombs in general, the next Wandering Monster (if any) will attack

2. In fact, EVERY Wandering Monster will attack (in the order they are listed in the Wandering Monster List)

3. During these Battles, Running Away CANNOT be attempted and Monsters will NOT Run Away. Instead, the Monster will vanish (take it off the Wandering Monster List) and a Trap immediately occurs!

4. If any Characters survive the Tomb, current Dimension Power is DOUBLED!