The self-proclaimed "Greatest Halloween Party Ever" is back for its fifth year, boasting a ball pit (to bring back fun, if unsanitary, memories of childhood), an hour of free beer (to relish in your current mature state), two hours of free pierogies, and three bands (the Vandelles, Toys in Trouble, and Dragons of Zynth). The theme is "The Annihilation of Oz," which is a warped imagining of what Dorothy left behind in Oz, where the Scarecrow, Tin Man, and Lion battle evil Glinda for control of Oz and end up hanged from the gates in Emerald City as a warning to future do-gooders. Come in costume (they are required!) for this twisted time.