secret entrance

Blair Searches for Entrance and Finds Hidden Entrance

Chung-sook Discovers Housekeeper's Secret Bunker

Merlin and Mordred Enter Secret Passage

Prescott Sneaks into Castle Grounds

Colonel Mustard and Mrs. Peacock Discover Secret Passage

Bond and Kissy Discover the Cave's Secret Entrance

Helicopter Arrives at Monsterland Control Center

Arrival at Creek Mountain Military Installation

Arrival at Project Inner Space Facility

Batman Delivers Rachel and Antidote to Batcave

Batmobile Drives to the Batcave

El Macho Enters Secret Lair

Blair Searches for Entrance and Finds Hidden Entrance

Burton Enters Cabinet War Office Headquarters

Helicopter Arrives at Monsterland Control Center

Bond and Kissy Discover the Cave's Secret Entrance

Chung-sook Discovers Housekeeper's Secret Bunker

Ray Finds Hidden Entrance to Crawl Space

Holmes Descends Secret Staircase in The Grange

Frid and Petra Bring Trunk into the House

Meeting the Four Keepers