Editing Cycle 15/Ruleset (section)

==== Boulder Trap ====
“Boulder Trap” is a type of space. Each Boulder Trap space has a list of spaces called its Boulder Path, and a space called its Safe Haven. When a player lands on a Boulder Trap space, a boulder rolls through all of the spaces on its Boulder Path, causing all players on that space and any space in its Boulder Path to flee, moving them to its Safe Haven. When a player passes through a Boulder Trap space, nothing happens.

Boulder Trap spaces cannot have their type changed through the use of items. If the use of an item would cause a Boulder Trap to change its type, then the use of that item is cancelled without effect.