How to trigger this year's Halloween event?

[bigjrodsw]

I've set my system time back to October 31st, but how can I trigger the tentacle dungeon? Is there a specific place I need to go to? Or something I need to do?

 

[Emerald]

Be level 7 or higher and travel either to or from Myrellion.

 

[Karretch]

Refresh game once clock is changed.