A song by Phineas and Isabella in The Carnival of Fun, while they are in the Haunted House. Phineas: Riding through town On a dark night. Isabella: Hoping that you won't get a fright. Lots of spooky stuff is in store. Ghosts, ghouls, Goblins and more. Phineas: They all await us Behind that door. Both: We have to be brave When we walk through this cave In the House of In the House of In the House Of Horror! (diabolical laughter is heard and the song ends) * The diabolical laughter is the same laughter that Ferb did at the end of One Good Scarebut the person who laughs is not Ferb.