Haven’t had enough scares yet this Halloween season? Well the Walls of Darkness
[https://www.facebook.com/WallsOfDarkness] pop-up haunted house might be just
what you need. Judging from the dozens of photos of “survivors
[https://www.facebook.com/WallsOfDarkness/photos_stream],” the self-guided,
three-story house is pretty spooky.