For Millennials—who stream all their entertainment—there’s nothing scarier than a WiFi dead zone. So Xfinity launched xFi Pods: small plug-in devices that extend WiFi coverage and eliminate dead zones in your home. There was just one problem: Millennials didn’t know they existed.

With Halloween approaching, Xfinity xFi Pods created a terrifying social media experience sure to get their attention.

Using xFi Pods, we eliminated every WiFi deadzone at the largest haunted house in the US, the Winchester Mystery House— a terrifying, mazelike mansion with 2,000 doors, 160 rooms and 40 staircases. The enhanced WiFi allowed us to conduct a live paranormal investigation, which viewers controlled on Twitter, without a signal interruption.

In the lead up to the event we leaked footage of paranormal footage and the event itself attracted thousands of viewers.

You can watch the entire event here.