Janus Key


 * "This is the Janice Key, it offers the real-time location of every piece of Forerunner technology in the galaxy"


 * -The Librarian to Catherine Halsey


 * "Every piece?"


 * -Catherine Halsey to the Librarian

The Janice Key is a very valuable asset to both the UNSC and the Covenant Remnant, as it is a catalogue of every piece of Forerunner technolgy in the entire galaxy.

Librarian's Gift
Jul 'Mdama somehow knew that the Librarian's Shrine contained within it a valuable artifact. However he believed that the gift would be knowledge directly from the Librarian and had no idea it was a material gift in the way of a Key. When 'Mdama successfully kidnaped Dr Halsey he knew that she could activate the Shrine for him, due to her own personal quest for knowledge. When Catherine had activated the Shrine she quickly entered it, to the anger of 'Mdama who wanted to be the one to converse with the Librarian.

Catherine soon was face to face with the Librarian, where the latter told Catherine that she must accept her gift as Requiem's time was coming to an end and this knowledge would be lost, severely damaging humanity's chances of reclaiming the Mantle. When Catherine accepted this gift she was propelled back into reality and Jul 'Mdama grasp. 'Mdama soon relieved Halsey of one piece of the Key, unaware that there was indeed two pieces. Soon SPARTAN Gabriel Thorne entered the Shrine hidden by Gek's cloaking device, to which he assassinated one of 'Mdama's bodyguards, Catherine immediatley threw the seconf half of the Key to Thorne. Directly after this Sarah Palmer appeared on her mission to assassinate Catherine. Jul 'Mdama aware of the threat of an enitre squad of SPARTAN-IV's soon called for reinforcement's in terms of the Promethean Knight's. Sarah attempted to complete her mission quickly, but only managing to shoot Catherine's shoulder. During the small skirmish 'Mdama quietly moved away from the battle while holding Catherine hostage, when the SPARTAN's had defeated the Promethean's one teleported behind 'Mdama and took himself and Catherine somewhere in Requiem.

Trivia

 * The Librarian states that the Didact was supposed give humanity the Janice Key, when he awoke from his meditation.
 * She seems somehow disapointed that her husband still have thousands of years still held a vengeful grudge towards humanity.