As reported last weekend, Guild Wars 2 is celebrating Halloween with a significant update called Shadow of the Mad King. As we draw closer to the fateful kick off date – October 22 – ArenaNet has gone into further detail of what the update brings. As well as the trailer below, the update’s promotional page now gives a timeline for the four acts of the new storyline, and gives a little bit of context for it. According to legend, a tyrannical king was slain 500 years ago, returning only on Halloween. Although he hasn’t been seen for 250 years, the tales have sprung up again in the wake of strange stirrings in the night.