A crowd of people were currently inside the Hole; people from different guilds who made it their priority to clear and sweep all the monsters. In truth, with few of Amerka's strongest explorers participating in this extermination, the only real threat was Arachnea's presence. But aside from the leader of the Rescue team telling them that Arachnea was sighted somewhere, no one had really even seen a shadow of her.
And so, the extermination has been quite uneventful for them — and it did not help that Esme practically locked a quarter of the entire city and encased it in ice, making their jobs a lot easier.