It has a spiral staircase up and down that leads to every room. Inside there is a sitting room which has a large television screen that is used to contact Colonel K and the lift mechanism concealed under the main sofa in the centre of the room that leads to the Mark III at the very bottom that has a secret opening with one the pavement stones under the box. It also another area that leads to the Space Hopper.
Apart from the top secret devices in the main sitting room, it has all the rooms of any normal house of bedrooms, a bathroom, and a kitchen.
| Danger Mouse | Count Duckula
Characters: Danger Mouse | Ernest Penfold | Colonel K | Baron Silas Greenback | Nero | Stiletto Mafiosa | Leatherhead | Count Duckula | Doctor Augustus P. Crumhorn III | Penfold's Aunt | Professor Heinrich Von Squarkencluck | Agent 57 | Buggles Pidgeon | B.L.E.E.P | Texas Jack McGraw McGraw | JJ. Quark | Grovel | El Loco | Obadiah | Doctor Frankenstoat | Fangboner | Mac the Fork | Dudley Poyson | Copper-Conk Cassidy | P.A.W.S.| Hannibal Hoggartey | Wulfgang Bach | Mad Manuel | Eddy Murphee
Locations: Pillar Box