Editing Coordinate key

{{Status|Canon}}

A '''coordinate key''' is a piece of [[Forerunner]] technology that leads the user to a location and grants them access to it.

==Operational history==
During [[343 Guilty Spark]]'s meeting with a [[mind transfer|personality imprint]] of the [[Librarian]] in [[Kilimanjaro Forerunner complex|a Forerunner complex]] beneath [[Mount Kilimanjaro]], she provided him with a small etched box containing a coordinate key with the instruction to ''"find what's missing. Fix the path. Right what my kind has turned wrong."''{{Ref/Novel|Ren|Chapter=48}}

Months later, when [[Lessa]] handled the coordinate key, it responded to the touch of a [[Reclaimer]] and part of it collapsed inwards by twelve millimeters to form the symbol for [[Installation 07]].{{Ref/Novel|PoL|5}} After six months without success in finding the {{UNSCShip|Spirit of Fire}}, [[Rion Forge]] agreed to take the ''[[Ace of Spades]]'' to follow the trail set by the key.

On Zeta Halo, Spark inserted the coordinate key into the installation's [[Cartographer#Installation 07|Cartographer]] with Rion adding her touch as a Reclaimer. The Cartographer displayed a [[star map]] pointing to a location on [[New Carthage]] before ejecting the key and a second component which Rion combined together. A [[slipspace portal]] was suddenly opened by the [[Precept]]{{Ref/Reuse|Id=PoL35}} using a [[personal slipspace unit]]{{Ref/Novel|PoL|19}} and pulled Rion through, although Spark managed to keep hold of the coordinate key.{{Ref/Novel|Id=PoL16|PoL|Chapter=16}} When [[Ram Chalva]] inserted the coordinate key into a terminal at [[New Carthage Forerunner Way Station|the way station]] that the map had pointed to, it released a third component to the key. When the pieces of the coordinate key were put together, it pointed to [[Erebus VII]] with no spots for a fourth piece.{{Ref/Novel|PoL|Chapter=28}}

On Erebus VII, Spark placed the key into a terminal and it summoned a [[Monitor]] known as the Precept who revealed that he had initiated the slipspace portal after sensing that Rion was a Reclaimer and summoned her to Erebus VII to judge her through Rion's experiences on the planet with the ''[[Eiyaa-Mahtuhaa]]''. After studying Spark, the Precept decided that he could proceed and tested Rion's [[geas|biological memory]]. Satisfied, the Precept returned the coordinate key to Spark and Rion with coordinates and access permissions to [[Bastion]] for the two of them alone.{{Ref/Novel|Id=PoL35|PoL|Chapter=35}}

The coordinates led the two to a static slipspace portal in orbit of a moon in an unnamed star system which the coordinate key allowed them to pass through.{{Ref/Novel|PoL|Chapter=37}} The ''Ace of Spades'' emerged over Bastion, which proved to be a [[shield world]] in the [[Orion complex]].{{Ref/Novel|PoL|Chapter=38}}

On Bastion, the Librarian's secret laboratory, Rion used the coordinate key to launch the ''[[Eden (spaceship)|Eden]]'' alongside a hard light key used by [[Keeper-of-Tools]]. Keeper told Spark that the key was meant to be brought to Bastion by the Librarian herself and that Rion's involvement was a last resort by the Librarian to enact her plans. Keeper revealed that the key, along with leading to Bastion, allowed unrestricted access to and control over Bastion and its caretakers.{{Ref/Novel|PoL|Chapter=41}} After ''Eden's'' departure, Spark used the coordinate key to assume control of Bastion as its new caretaker as Keeper had wanted.{{Ref/Novel|PoL|Chapter=42}}

==List of appearances==
*''[[Halo: Renegades]]'' {{1st}}
*''[[Halo: Point of Light]]''

==Sources==
{{Ref/Sources}}

{{Forerunner|technology}}
[[Category:Forerunner technology]]