So I take your first die roll, then I add three movement, which places you there:

Then it is my turn.
Blue room die roll

6 plus 2 markers is enough; the blue room starts to collapse.
Red room die roll

The red room not yet - it get's a marker.
The dwarfes can't yet take their next turn because "the caster" did not yet start his next turn...
The blue room starts collapsing, that means there are everywhere falling block traps coming down.
So with the collapsing started, the game board looks like that now:

It is your turn again. Run!





















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