The Cursed Cabinet of Professor Madds Markson! Scooby-Doo and Guess Who? : Season 1 Episode 7
TV-PG HBO Max 22m
Aired: August 8th, 2019 @ 3:00 AM EST on HBO Max
When our mystery solving gang accepts the invitation to spend one night in the haunted Savannah Hotel in Las Vegas before its controlled demolition, they find that they're not alone. Magicians Penn & Teller have also accepted the challenge.
