This Halloween, Burger King is adding an electromagnetic field ghost detector within the BK App and inviting its Royal Perks Members to discover whether they have paranormal activity in their house. Guests who use the Home of the Ghosts feature in the app are in for a spooky surprise: a meal for two featuring the new limited time Ghost Pepper Whopper.

This latest Whopper innovation is scary good, and includes everything Burger King Guests love about the Whopper with a spicy twist—a flame-grilled beef patty, spicy queso, crispy jalapeños, bacon, and ghost pepper cheese, all on a toasted orange and black sesame seed bun. Guests can get the Ghost Pepper Whopper starting Oct. 10 for a limited time at restaurants nationwide.

This news follows the brand announcing a renewed focus on the iconic Whopper in its ‘Reclaim the Flame’ plan, detailed in Sept. 2022. And, the Home of the Ghosts promotion is the latest exclusive benefit BK is giving its Royal Perks Members.

Burger King will spend $400 million in the next two years, including $150 million on advertising and digital channels, and $250 million on technology and physical restaurant upgrades. Franchisees, which make up 93 percent of the system, agreed to co-invest with advertising dollars. The fast-food chain also decided to update its tagline to “You Rule,” which is described as an “emotional articulation” of the classic “Have it Your Way” messaging.