San Antonio’s 13th Floor Haunted House is getting even scarier next month for its “Blackout” event, according to a press release. Between 7 p.m. and 9 p.m. on Friday, Nov. 11, the haunted house will turn out all of its lights, and those brave enough to enter will have to navigate the 13th Floor — ranked among the scariest haunted houses in the nation by the Travel Chanel — with only a glow stick to light the way. “Blackout is our favorite night at 13th Floor San Antonio,” general manager Blaine Skreenock said in a statement.