Fraternitas Mysterium

The Fraternitas Mysterium was a group of mystery solving friars with a donkey mascot named Porto.

Early life
The were corrupted by the Planispheric Disk and their mascot blew up half of Crystal Cove in the early to mid 1800s.

Notes/trivia

 * Mystery-solving monks may be a nod to the fictional detective Brother Cadfael.

Appearances

 * Scooby-Doo! Mystery Incorporated
 * 210: Night Terrors (portrait)
 * 215. Theater of Doom (flashback)