Jenna Throne is a mechanically augmented agent of the Illuminati. She is also an agent of the United States Department of Homeland Security, a role that serves as a cover. She is a primary antagonist in the novel Deus Ex: Black Light.
Thorne is described as having a pale face with henna-red hair.
In late 2028, Thorne is stationed in Facility 451 in Alaska and interrogates Adam Jensen, who had recently awoken from a coma at the facility. Thorne is interested in what Jensen was doing at Panchaea on the day of the Aug Incident. Thorne informs Jensen that she is aware that Jensen was in the core of Panchaea just prior to the collapse of its structural protection systems, and asks Jensen about the details of what he saw and how he got out, among other events that occurred during that day. Suspecting that Thorne is an Illuminati agent, Jensen refuses to give any detailed answers.
Unimpressed with Jensen's lack of cooperation, Thorne turns the other residents of Facility 451 against Adam by revealing to them that Adam was involved in triggering the Aug Incident. To gain additional leverage over Jensen, Thorne also orders Stacks, a resident of the facility who had recently befriended Jensen, to be sent to the segregation block. However, Jensen and Stacks escape from the facility and head to Detroit.
Thorne is later in Detroit to oversee the Illuminati's operation in extracting military-grade augmentations out of Detroit. However, Jensen's presence in Detroit has complicated this operation. Thorne hires Don Wilder, an ex-Sarif Industries employee and local operative based in Detroit, to capture Jensen. Wilder captures Jensen but is given a no-kill order by Thorne, leaving Jensen for pick-up by local police. Wilder later meets with Thorne in a hotel and complains about being ordered not to kill Jensen. Thorne explained that the no-kill order was part of her instructions, and expresses dissatisfaction of Wilder for complicating the task by interfering with local gang members and causing collateral damage. When Wilder tries to draw his weapon, he is shot dead by Thorne.
To extract the military-grade augmentations out of Detroit, Thorne and the Illuminati have hired Magnet and his Motor City Bangers to retrieve the augmentations and have hired Sheppard to air-lift the augmentations out of the city. However, the air-lift fails as a result of invention by Jensen and Task Force 29, which earlier had managed to rescue Jensen before he could fall into the custody of local police.
In wake of the failed airlift, Lucius DeBeers informs Thorne that her assignment remains incomplete. Thorne complains that the failure to extract the augmentations was due to the interference of Jensen. In response, DeBeers tells her that Jensen is not her concern, and that she is not the only asset in play. Since the augmentations are now being shipped by train to a military base for disposal, DeBeers instructs her to proceed to recover the augmentations by attacking the train with an elite strike force.
Thorne joins with the Illuminati strike force, which include Gunther Hermann, and boards the train. The strike force easily dispatch the TF29 personnel on the train, but their operation is interrupted by the arrival of Jensen. Thorne points a gun at Jensen, but Gunther rebukes her, saying that killing Jensen is contrary to the original orders that they received. Thorne nonetheless intends to open fire; however, with the help of Raye Vande, Jensen successfully flees to another part of the train. Thorne orders Gunther to pursue Jensen. Gunther hesitantly complies, after telling Thorne that she will be held responsible for her actions in defying the orders to leave Jensen alive. Gunther attacks Jensen, but Jensen turns the train into a runaway, forcing Gunther to flee.
Meanwhile, Throne is exasperated at the fact that her superiors consider Jensen to be an asset that is worth keeping alive, for reasons that she could not comprehend. Feeling defiant of her superiors' orders, Thorne fully intends to kill Jensen herself. After killing Raye Vande using the thorn-like protrusions of her arm augmentation, Throne is once again confronted by Jensen, heavily wounded due to his encounter with Gunther. Thorne taunts Jensen, angrily telling him that he is alive only because of the blood in his veins. However, Thorne is defeated by Jensen's Typhoon augmentation. Jensen escapes the train, leaving Thorne dying onboard the train as it is about to derail and crash. Thorne is presumably killed by the crash, although her fate is never explicitly confirmed.
Throne's is equipped with an assortment of augmentations, including neural implants, a CASIE social enhancer, and cybernetic arms. Thorne's cybernetic arms have a unique feature of protrudable thorn-like barbs made of a synthetic diamond analog. When the barbs are fully extended, her arms resemble a rose stem lined with thorns, fitting to her name.