Editing Vale Citadel

{{Status|Canon}}
[[File:H4-SO-SniperAlley-Tower.jpg|thumb|300px|The Vale Citadel's main tower in the canyon.]]
The '''Vale Citadel''',{{Ref/Game|MCC|Halo 4|Halo 4|Detail=[[Campaign]] level ''[[Reclaimer (level)|Reclaimer]]'' Rally Point Bravo Summary|Quote=Master Chief leaves the Mammoth and heads alone into the Vale Citadel to deactivate the particle cannon network.}} also known as the '''Librarian's Rest''' by [[Jul 'Mdama's Covenant]],{{Ref/SpOps|Id=search|Key|Key/The Search for Halsey|LevelLinkText=The Search for Halsey}} was a location inside the [[Forerunner]] [[shield world]] [[Requiem]].{{Ref/Level|Id=reclaimer|H4|Reclaimer (level)|Reclaimer}}

== Overview ==
The Vale Citadel was a Forerunner structure that notably contained the controls for Requiem's automated [[particle cannon]] network, which defended the [[gravity well]] nearby. The structure was situated within a canyon, with its entrance accessible via a series of Forerunner platforms built into the canyon. The interior of the structure featured cavernous hallways connected by [[elevator]]s.{{Ref/Reuse|reclaimer}} The Vale Citadel hosted a device inholding the [[Librarian]]'s imprint and later became a major emplacement in the [[Requiem Campaign|conflict]] opposing the [[United Nations Space Command]] to the [[Jul 'Mdama's Covenant|reformed Covenant]].{{Ref/SpOps|Id=s1c2|Departure|Departure/Sniper Alley|LevelLinkText=Sniper Alley}}{{Ref/SpOps|Id=s2c4|Artifact (Spartan Ops)|Artifact (Spartan Ops)/Pelican Down|LevelLinkText=Pelican Down}}{{Ref/SpOps|Id=s4c1|Didact's Hand|Didact's Hand/Hairy Call|LevelLinkText=Hairy Call}}

During the [[Requiem Campaign]], the UNSC designated the structure's entrance as "[[Sniper Alley]]" UNSC due to the Covenant frequently deploying [[Kig-Yar Sniper]]s at the location.{{Ref/Reuse|s1c2}}{{Ref/Reuse|s2c4}}{{Ref/Reuse|s4c1}} A particular device inside the Vale Citadel, which contained [[Mind transfer|an imprint]] of the [[Librarian]], was seen as a shrine by the Covenant, thus the structure became known as the "Librarian's Rest".{{Ref/Reuse|search}}

== History ==
Near the end of the [[Forerunner-Flood War]], the Librarian imprisoned the [[Ur-Didact]] within Requiem. Before she left Requiem, the Librarian left an imprint of her mind inside Vale Citadel. The imprint would guide [[human]]ity on their path to the [[Mantle]] by communicating with [[SPARTAN-II program|Spartan-II]] [[John-117]] and Dr. [[Catherine Halsey]], when the two individually accessed the structure in [[2557]] and [[2558]], respectively.{{Ref/Reuse|reclaimer}}{{Ref/SpOps|Id=key|Key}} 

In July 2557, during the [[Battle of Requiem]], the stranded UNSC forces from {{UNSCShip|Infinity}} deduced with telemetry analysis that the Vale Citadel was the command post that controlled the particle cannon networks defending Requiem's gravity well. The [[Captain (NAVCOM)|Captain]] of UNSC ''Infinity'', [[Andrew Del Rio]], sent John-117 and [[Gypsy Company]] to neutralize the particle cannon network. John-117 fought through the defending [[Promethean]] and Covenant forces outside the Citadel, and eventually entered the interior. Inside, John-117 was led into what the Covenant called the "Librarian's Rest". Inside the shrine, the Librarian revealed to him the truth about the ancient humans and asked him to stop the Ur-Didact. She provided him an immunity to the [[Composer]], but was unable to tell him more as her husband had found them. The Chief then left the structure.{{Ref/Reuse|reclaimer}}

In February [[2558]], during the [[Requiem Campaign]], both the UNSC and the Covenant sought the Librarian's imprint, but [[Jul 'Mdama]]'s forces were the first to find "Librarian's Rest." However, the shrine's activation required a [[Reclaimer]]. Using a Forerunner [[Requiem slipspace artifacts|artifact]] which was brought onboard the {{UNSCShip|Infinity}} by its crew, the Covenant managed to abduct Dr. [[Henry Glassman]] and forced him to work on opening the shrine. They thought the Librarian would gift them incredible bounties spread throughout the galaxy, such as weapons and ships.{{Ref/SpOps|Didact's Hand}} Despite lacking adequate equipment, Glassman managed to activate the shrine. When all the [[Sangheili]] were captivated by it, he [[Escape from Librarian's Rest|escaped]] with the help of Spartan [[Gabriel Thorne]] who had been captured and taken to "Librarian's Rest." However, Glassman only managed to activate the shrine's protective shield rather than the ability to enter it.{{Ref/SpOps|Scattered}}

[[File:H4-SOps-Halsey-Librarian.jpg|thumb|275px|The Librarian reveals her plan to Dr. Halsey.]]
Later, after [[Invasion of the UNSC Infinity|an attack]] on the ''Infinity'', the Covenant abducted Dr. [[Catherine Halsey]] to help them unlock the structure. At "Librarian's Rest," Dr. Halsey deactivated the protective shield with her data pad. She then quickly ran into the beam of light before 'Mdama.{{Ref/SpOps|Expendable}} Inside the shrine, Halsey met the Librarian, who offered her the two halves of the [[Janus Key]], an artifact capable of locating every pieces of Forerunner technology in the galaxy. She asked her to bring it to the [[Absolute Record]] to help mankind. Halsey was subsequently expelled from the shrine.{{Ref/Reuse|key}}

Once Dr. Halsey was expelled from the shrine, 'Mdama took the red half of the key, while the doctor tossed the blue half to [[Gabriel Thorne]], who had just arrived. [[Commander]] [[Sarah Palmer|Palmer]] and the rest of [[Fireteam Majestic]] then arrived and [[Skirmish at Librarian's Rest|clashed with]] [[Sangheili Storm]] and [[Promethean Knight]]s. 'Mdama was able to escape with a wounded Dr. Halsey thanks to a Knight who translocated them away, resulting in the failure of the Spartans' mission.{{Ref/Reuse|key}} As all the enemies were either dead or gone, the [[SPARTAN-IV Program|Spartans-IVs]] left the "Librarian's Rest." Later, as the Librarian had predicted, Requiem was set on a collision course with its sun, which ended in the destruction of the shield world,{{Ref/SpOps|Exodus (Spartan Ops)}} but not the Librarian's imprint as she had been transferred to the Absolute Record with the help of [[Fireteam Crimson]].{{Ref/Reuse|search}}

==Gallery==
<gallery>
File:H4 reclaimer room concept.jpg|Concept art of the particle cannon network controls inside the Vale Citadel.
File:H4 ValeCitadel Antechambers Concept.jpg|Concept art of the underground structure.
File:H4-SO-S1E2-SniperAlley-02.jpg|The canyon at the entrance to the Vale Citadel.
File:HTMCC-H4 Cannon Facility.png|The entrance to the Vale Citadel.
File:HTMCC-H4 Shutdown.png|The main hall of the Vale Citadel.
File:HTMCC-H4 Cannon Online.png|The room housing the controls for Requiem's particle cannon network.
File:HTMCC-H4 Cannon Off.png|The room housing the controls for Requiem's particle cannon network.
File:HTMCC-H4 Vale Citadel Controls.jpg|The facility's controls for Requiem's particle cannon network.
File:HTMCC-H4 Terminal 4.jpg|A hallway inside the Vale Citadel.
File:H4 John-117 and Librarian.PNG|John-117 and the Librarian meet inside the shrine.
File:Enraged knight.jpg|John-117 fighting a Promethean Knight inside the Vale Citadel.
File:Shrine activation 2.png|Glassman activates the shrine.
File:H4SO Mdama with his guards.png|Jul 'Mdama and his Sangheili standing before the Librarian's shrine.
File:Librarian's-Rest-activated.jpg|The shrine activated by Halsey.
File:HTMCC-H4 SO JanusKeyDisplay2.png|The Librarian shows the effect of the key to Dr. Halsey.
</gallery>

==List of appearances==
*''[[Halo 4]]'' {{1st}}
**''[[Spartan Ops]]''
*''[[Halo: Escalation]]''
*''[[Halo Mythos]]'' {{Mo}}

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

[[Category:Requiem locations]]