I'm not exactly sure when the event is working as planned. Right now, Stormwind is absolutely overrun with ghouls which are rampaging through the Wow gold classic streets and slaughtering everything that moves. The auction house, sellers, and even the bank are all unusable--that might be frustrating for players who, when the event is really reside, are only trying to go about their day to day business. Over on the WoW subreddit, players have also found ways to attract the zombie infestation outside of capital cities, making entire regions of Azeroth uninhabitable. Fortunately, WoW game designer Jeremy Feasel affirmed the zombie invasion part of the event is only going to be active for a couple of cheap classic gold hours throughout the day rather than all the time. I am actually a little disappointed by that, honestly, because I think it would be interesting to see yet another all-out, 24/7 invasion which players need to attempt to contain--something similar to World of Warcraft's infamous Corrupted Blood event.