For this Halloween’s ad campaign, BURGER KING has conducted “the first spirit taste test ever” and has released a video of the “event”.

The fast-food chain went to the Alexandria Hotel in LA with master medium and trance-channel Riz Mirza to contact the spirits that sleep in this haunted location and have them taste the limited-edition Ghost WHOPPER. By incorporating spirits into his body, BURGER KING was able to feed the burger with a ghostly-white bun to spirits and ask them what they thought of it. The result? Ghost WHOPPER became the first burger to be approved by 11 out of 10 people.

The Ghost WHOPPER, made with a white-cheddar bun, is available at select participating restaurants in ten cities across the US from October 24th through October 31st. The spooky sandwich costs $4.59.