Sherry the Mouse

Aka Rat Invasion. Strictly saying, it's a part of Sherry the Mouse event in Inu the Crone scenario chain.
Sherry event has great meaning, because Devs tried to run it by programmed NPCs a few months before Ricardo trial.
It seems the event didn't finished successfully. For example sherry's MegaCliloc error, mousehole, etc.
A mousehole can be picked from ground because of lockdown error, but it doesn't allowed to have and is not good for your account.
It's interesting for me, because it's clear Devs tried to set mouseholes in all shards by programmed code, failed though. It's nonesense if you believe GMs forgot to lock them down in most or all shards.