Experts assure us that ghosts are just hallucinations brought on by carbon monoxide poisoning. Well, experts, have fun explaining the 13 terrifying hauntings that just simultaneously went live in our fully poison gas-free Halloween maps! For everyone else, prepare to experience the spectral horror of carbon monoxide without any of the headaches or lethargy! Three new Halloween maps! All classic Scream Fortress Maps! All-new contracts! New taunts! And a Creepy Crawly Case with the chance to get our newest unholy Halloween creation: a taunt Unusualifier! Plus, for all you unusual effects fans: For the duration of the event, all unusual cosmetics that you unbox from any case or crate will have a Halloween 2016 unusual effect, and the chances of receiving an unusual cosmetic across all cases, even old ones, will be DOUBLED. It's usually single! That's TWICE as many chances! And that's terrifying! Continue reading...