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"For three very smart people, that was really stupid. What if Wells had caught you in that..."
"Time vault."
Joe West and Cisco Ramon[src]

The Time Vault, a name coined by Cisco Ramon, is a secret room located in S.T.A.R. Labs. It is also where Gideon and the Reverse-Flash suit were stored. Eobard Thawne had secretly used this room to monitor Barry Allen and his team, and he had occasionally asked Gideon to show him archives from the future, to make sure that the timeline had not changed. The plinth in the vault was used by Nora West-Allen used to send messages through Gideon to Eobard Thawne in 2049.

In a rewritten reality, it was briefly called the Fortress of Solitude where "Superman" kept the Book of Destiny hidden.[1]


Year One[]

Wells Thawne Time Vault Power Outage 2

"Wells" in the Time Vault.

Eobard Thawne had Gideon keep a newspaper article from The Central City Citizen that explained the battle with him in the future, apparently going back in time to the night of Barry's mother's murder.[2]

As part of a plan to stop Cicada, Barry and Nora went back in time from 2018 to collect items Team Flash had previously come across to use said items to construct a device to cancel out the powers of Cicada's lightning dagger. Having already collected the two components necessary to build the instrument (a vial from the Speed Force transmitter Harry Wells had built when Team Flash had fought Zoom, and a shard of Savitar's suit of armor) they then traveled back to December 11, 2013; the night of the particle accelerator explosion that gave Barry, and many other meta-humans, their powers. The pair stealthily phased into the Time Vault immediately before Thawne was about to activate the particle accelerator. The brief use of their speed was detected by Eobard but before he could investigate the vault, he was interrupted by Cisco and Caitlin. Barry and Nora remained inside, pressing their ears against the hidden entrance until they were certain Eobard had left.

Barry put the shard inside the Speed Force transmitter capsule, which he then plugged into Gideon's console in the plinth and activated the A.I. Gideon greeted Barry, remarking she had not expected to see him so soon. She then acknowledged Nora as XS and mentioned she would be the fifth recruit of a group called the Legion, only to be interrupted by Barry, stating that the S.T.A.R. Labs particle accelerator was about to explode. He then instructed her to re-calibrate her system so that some of the dark matter released by the particle accelerator explosion would be drained into the vial, and to leave no record of their encounter. He then stopped Nora from touching the Reverse-Flash suit and was forced to tell her how Eobard murdered his mother in 2000 in an attempt to stop him from ever becoming the Flash. Nora insisted he didn't need to protect him from the terrible things in his past and that she only wanted to know her father. They embraced. Gideon then informed them that she'd finished re-calibrating her system. Moments later, the particle accelerator exploded, imbuing the fragment of Savitar's suit with dark matter. They planted the transmitter and suit fragment near the entrance to the hospital (hiding it by phasing it into one of the building's support columns) in order to use it to battle Cicada in the present, and both returned to 2018.[3]

After Cisco informed Eobard of Ronnie saving the facility, Eobard went to the vault to access his hidden camera inside Barry's crime lab to verify that his plan to create the Flash had succeeded.[4]

Not long after Barry awoke from his coma and began working with S.T.A.R. Labs, Eobard visited the vault and checked the newspaper article from the future.[5]

Wells Thawne Time Vault Power Outage 3

"Wells" realizing the future has changed.

In the vault, Eobard recorded a log entry, reviewing Barry's development in the past few weeks. After Blackout stole Barry's powers, Eobard returned to the vault, ordering Gideon to scan the timeline for any mention of the Flash to ensure that the future remained intact, but there were no results, which greatly upset Eobard. After Blackout was defeated and Barry regained his powers, Eobard returned to the vault once again to record another log entry and to confirm that the timeline was intact.[6]

At Christmas, having successfully masterminded the theft of Mercury Labs's tachyon device, Eobard places his costume onto a mannequin and places the tachyon device on his chest.[7]

Eobard was in the Time Vault when Hartley Rathaway escaped the Pipeline, prompting him to race out, only to lose his speed midway. After Barry's fight with Hartley, Eobard returned to the vault to use the tachyon device in an attempt to absorb the Speed Force.[8]

However these events were presumably altered or erased when Barry, wanting to get information from Eobard about how to increase his speed, traveled back in time to when he captured Hartley altering events so that Hartley never broke out. Shortly after, Eobard was able to discern that this future Barry is not the Barry of the present and knocked him unconscious, keeping Barry captive in the Time Vault. Before future Barry traveled back to his own time, him and Eobard returned to the Time Vault so that Eobard could give him his knowledge of the speed equation and tachyon enhancement. After returning to the future, Barry used the console in the Time Vault to access Eobard's speed equation.[9]

When Team Flash was trying to figure out how to separate Firestorm - Ronnie Raymond from Martin Stein, Eobard retrieved a pistol from a compartment next to his Time Vault mannequin. While in the vault, he asked Gideon if the tachyon device could be converted into a quantum splicer.[10]

After Barry changes the timeline by capturing Mark Mardon, Eobard checks the vault to see if the future is still intact.[11]

Barry, Cisco and Caitlin later find the Time Vault, discovering the Reverse-Flash costume, the futuristic newspaper and Gideon.[12] When they detect Eobard approaching, Barry tells Gideon to not tell Eobard that they found the vault, before racing his friends to safety.

Following the failed sting to get Eobard to confess to murdering Nora, Cisco tells Barry that the tracker in his wheelchair puts him in the Time Vault. Barry races to the Time Vault to find out that the room was connected to various hidden cameras Eobard has placed in his home, CCPD and elsewhere.[2]

Year Two[]

Six months after Eobard was erased from existence, the time vault remained unused until Cisco and Harrison Wells of Earth-2 discover a spare Reverse-Flash costume in the vault.[13]

After Christmas, Harry lured Cisco into the Time Vault and startled him by wearing the Reverse-Flash costume, confirming his theory that fear or adrenaline is what triggers Cisco's vibes. Cisco then vibed on the costume and learns that a younger version of Eobard had arrived in their time.[14]

Following the kidnapping of Wally West and Barry having to give up his speed to Zoom to return him, Harry and Joe kept Wally and Jesse in the vault for their protection with supplies while the rest of the team worked to recreate the particle accelerator explosion to restore Barry's powers. They later hard wired the security systems and escaped the vault just as the particle accelerator exploded.[15]

Year Three[]

During the Dominators' invasion of Earth, Barry went into the Time Vault to check the newspaper article about his disappearance from 2024, only to find Iris West-Allen was no longer the author, assumed to be due to Flashpoint. Oliver Queen insisted that the future article was meaningless and assured Barry that if he or anyone else had his powers, they would've done the same thing as he did to save his parents and reveals to him how his own parents died.[16]

After Christmas, Barry brought Iris to the vault to show her the altered article. She assumed that she would quit her job in the future, only to be told by Barry that he accidentally traveled to May 23, 2017 and witnessed Savitar murder her before his future self, and promised to prevent that future from happening.[17]

When Barry went into the Speed Force to rescue Wally, Iris came into the vault and stared at the future newspaper contemplating the state of her relationship with Barry. Joe then came in and consoled her.[18]

When Abra Kadabra was freed from the pipeline, he went to the time vault to steal a power source stored the vault in order to use it to power a timeship he'd built to return to the future.[19]

On May 23, 2017, after Savitar unknowingly killed H.R. Wells in Iris' place, Barry, Iris and Joe returned to the Time Vault and confirmed that the future article's author had changed back to Iris West-Allen. Later on, Barry and Iris stare at the Reverse-Flash costume, the former remarking how much he hates Thawne and Zoom for murdering his parents and how he hated Savitar for almost killing Iris.[20]

Year Four[]

Harry Wells in the time vault

Harry in the Time Vault.

Gideon was activated once again by Harry Wells from Earth-2. Gideon asked him how can she help, and Harry said that a lot has changed in the past three years.[21]

Gideon was later hijacked by Clifford DeVoe using Kilg%re's powers, enabling him to hijack S.T.A.R. Labs' satellite to replace one of five that Barry destroyed for his Enlightenment. He also plugged a vial of dark matter and Neil Borman's former miniaturized cell-turned nuclear fusion battery into her console to transmit the energy to the satellites.[22]

Year Five[]

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Nora West-Allen used the Time Vault to send data and communicate with Eobard Thawne in 2049, who was imprisoned in Iron Heights.[3]

Harrison Sherloque Wells had later visited the Time Vault to confirm with Gideon on the time language in Nora West-Allen's journal.[23]

Before her erasure, Nora West-Allen had made a message for her parents, Barry Allen and Iris West. It was played by them in the Time Vault.[24] However, the plinth was later destroyed by Mar Novu.[25]

Altered reality[]

In an alternate reality John Deegan created using the Book of Destiny, the Time Vault was still a part of his new version of S.T.A.R. Labs. In this reality, he referred to the Time Vault as the "fortress of solitude", using it to store the Book. Somehow, it was unlocked.[1]

Year Six[]

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Known users[]

From Earth-1[]

From Earth-2[]

From Earth-221[]


The Flash[]

Season 1

Season 2

Season 3

Season 4

Season 5

Season 6

Season 8


Season 6[]


Season 4[]

Season 5[]


The Flash: Season Zero[]


  • The pattern of the walls is accomplished using a repeated wall flat tile design meant to look like Braille texture.[26]
  • The plinth in Eobard Thawne's cell within Iron Heights Prison in 2049 is the same design as the one in the Time Vault.