Greater Key

The "Greater Key" was a code name given by Huxley to a Great Houses superweapon. Her sources disagreed on what it looked like, with most saying it was a box with circular writing but one person certain it was a metal rod.

In the War in Heaven, the "Greater Key" was kept at a Great Houses base on RMS in the Amazolian system. The Enemy attacked the base to try to obtain the superweapon, resulting in a conflict that ended after a conceptual predator got out of control and caused both sides to forget about the base and the "Greater Key". During the Armistice, Huxley sent Wade, Nezf, Tabrenilsodvoravitas, and a Shift to RMS to steal the "Greater Key" during the apparent negotiations. Wade found the "Greater Key", at the time taking the form of a metal rod. It showed her the entirety of time and space and her place in it, and was then used by Wade to destroy RMS. (PROSE: A Farewell to Arms)

Behind the scenes

 * The code name "Greater Key" refers to the Moment's origins given in the comics The Forgotten and Don't Step on the Grass as an upgraded version of the Great Key of Rassilon.
 * In AHistory, Lance Parkin equates the weapon seen in his novel The Eyeless with the weapon mentioned in The Forgotten and the Moment as mentioned in TV: The End of Time. He further suggests that the Time Lords built the Moment for the War in Heaven but only used it during the Last Great Time War.