Be Cool, Scooby-Doo! Season 1 Episode 7
To solve the mystery of a creepy Crystal Crawler – a bat-like cave monster – the Gang must venture into the Crystal Canopy – a labyrinth of intricate crystal formations. To make things worse, they can’t speak a word while in the Canopy, because even the slightest sound will bring the crystals crashing down around them!
Serie: Be Cool, Scooby-Doo!
Guest Star: Frank Welker, Grey DeLisle, Grey Griffin, Kate Micucci, Matthew Lillard