A Time Sceptre was the living core of a TARDIS around which the entire vehicle was structured. The various dimensionally transcendent rooms were contained in this structure, with the TARDIS control room located in the upper half of a central sphere at the heart of the sceptre. The lower half of this sphere was the switch room, which relayed signals from the TARDIS console to the entire ship. A TARDIS' secondary control room was also located in the sphere at a different time phase. (PROSE: The Visual Dictionary [+]Loading...["The Visual Dictionary (2007 reference book)"])
The Time Sceptre shape appeared connected to the console room of the Type 1 TARDIS (COMIC: The Lost Dimension [+]Loading...["The Lost Dimension (comic story)"]) and the console room of the Ninth and Tenth Doctors. (PROSE: The Visual Dictionary [+]Loading...["The Visual Dictionary (2007 reference book)"])