. . . . "The Secret Serum"@en . "Battle of the Humungonauts"@en . . "The Secret Serum"@en . "Battle of the Humungonauts"@en . . . . . . . . . "Howl of the Fright Hound title card.png"@en . . . . . . . . . . "Howl of the Fright Hound is the tenth episode of the first season of Scooby-Doo! Mystery Incorporated."@en . . "Scooby-Doo! Mystery Incorporated"@en . . "2010-10-04"^^ . . . . "Howl of the Fright Hound"@en . "Fright Hound tears thru Mystery Machine roof.png"@en . . . . "Howl of the Fright Hound is the tenth episode of the first season of Scooby-Doo! Mystery Incorporated."@en . . . . . "2010-11-12"^^ . . . . "110"^^ . . . . . .