Question: What is the name of the first book in the series based on a stealth video game series developed by the Danish company IO Interactive?

full_context: Document 1: Hitman: Blood Money: Hitman: Blood Money is a stealth video game developed by IO Interactive and published by Eidos Interactive for Microsoft Windows, PlayStation 2, Xbox and Xbox 360. It is the fourth installment in the "Hitman" video game series.
Document 2: Hitman: Enemy Within: Hitman: Enemy Within is the first novel in the "Hitman" series. It was written by William C. Dietz and released on August 28, 2007, from Del Rey Books. The novel's plot is set between "Hitman 2: Silent Assassin", "Hitman: Contracts" and "Hitman: Blood Money" and revolves around a rival murder-for-hire organization, known as "Puissance Treize" (French for "Power Thirteen"), attempting to destroy Agent 47's employer, the International Contract Agency (ICA). The book's tagline is: "The clone assassin has been played long enough – now it’s more than a game."
Document 3: Hitman: Absolution: Hitman: Absolution is a stealth thriller video game developed by IO Interactive and published by Square Enix. It is the fifth installment in the "Hitman" series, and runs on IO Interactive's proprietary Glacier 2 game engine. Before release, the developers stated that "Absolution" would be easier to play and more accessible, while still retaining hardcore aspects of the franchise. The game was released on 20 November 2012 (which is in the 47th week of the year in reference to the protagonist, Agent 47) for Microsoft Windows, PlayStation 3, and Xbox 360. On 15 May 2014 "Hitman: Absolution — Elite Edition" was released for OS X by Feral Interactive; it contained all previously released downloadable content, including "Hitman: Sniper Challenge", a "making of" documentary, and a 72-page artbook.
Document 4: Stealth Bastard: Stealth Bastard: Tactical Espionage Arsehole is a 2D platform video game developed by Curve Studios and published by Curve Digital. Its mechanics revolve around stealth, and the gameplay has been likened to that of "Metal Gear Solid" and "Super Meat Boy". The player controls a goggle-wearing clone who must make his way through a testing facility filled with hazards and robot sentries by staying in the shadows, risking instant death if he is spotted by an enemy. The game was first released on 4 November 2011 as "Stealth Bastard" as a free download for Microsoft Windows. An expanded version, "Stealth Bastard Deluxe", was released for Windows via Steam the following November. It subsequently became available for OS X and Linux in April 2013 along with "The Teleporter Chambers" downloadable content released the previous month. In June 2013, it was released for Android as part of the Humble Bundle with Android 6, including DRM-free versions for Windows, Mac OS and Linux and its soundtrack. Versions for the PlayStation 3 and PlayStation Vita were also released in July 2013 under the name Stealth Inc: A Clone in the Dark. Curve have also announced plans to release the game for iPad and iPhone. In February 2014 a PlayStation 4 version of the game titled the "Ultimate Edition" was announced. It contains two DLC expansions "The Teleporter Chambers" and "The Lost Clones" and was released in March 2014. On 1 May 2014, a sequel, "", was announced for the Wii U. It was released on 30 October 2014. The Microsoft Windows, PlayStation 3, PlayStation 4, PlayStation Vita, and Xbox One version was also announced. In April 2015, it was announced that the sequel, "Stealth Inc. 2", will be released on Xbox One on 3 April, while both PS4 and PC players would have to wait until the 7th to grab the game digitally.
Document 5: The Third Option: The Third Option is Vince Flynn's third novel, and the 2nd to feature Mitch Rapp, an American agent that works for the CIA as an operative for a covert counterterrorism unit called the "Orion Team". The first in the Mitch Rapp series American Assassin, was written later, but was a prologue to Kill Shot.
Document 6: The Bourne Identity (novel): The Bourne Identity is a 1980 spy fiction thriller by Robert Ludlum that tells the story of Jason Bourne, a man with remarkable survival abilities who suffers from retrograde amnesia, and must seek to discover his true identity. In the process, he must also reason out why several shadowy groups, a professional assassin, and the CIA want him dead. The story takes readers on an action-packed journey into a world of deceptions and conspiracies, offering a psychological portrait of Bourne, and giving them the chance to experience from his point of view the life-or-death decisions he makes as he seeks to piece together the dangerous puzzle of his missing past. It is the first novel of the original Bourne Trilogy, which also includes "The Bourne Supremacy" and "The Bourne Ultimatum".
Document 7: Hitman (2016 video game): Hitman is an episodic stealth video game developed by IO Interactive and published by Square Enix for Microsoft Windows, PlayStation 4, and Xbox One. A port for Linux, developed and published by Feral Interactive, was released on 16 February 2017. A version for macOS, also developed and published by Feral Interactive, was released on 20 June 2017. It is the sixth entry in the "Hitman" series. The game's prologue acts as a prequel to "", while the main game takes place seven years after the events of "".
Document 8: List of Square Enix Europe games: Square Enix Europe is a British video game publisher which is wholly owned by Square Enix, a Japanese video game company. Square Enix acquired game publisher Eidos plc on 22 April 2009, which was then merged with Square Enix's European publishing wing and reorganized as Square Enix Europe. This list includes retail, downloadable, and mobile games published by Square Enix Europe since its formation in April 2009. Prior to its purchase, Eidos plc was the holding company for the Eidos group of companies, including publisher Eidos Interactive and development studios such as Crystal Dynamics, IO Interactive, Beautiful Game Studios, and Eidos Montréal. The majority of the titles published by Square Enix Europe have been developed by those former subsidiaries or by newer Square Enix subsidiaries such as Square Enix Montréal. Additionally, most of the titles belong to franchises previously published by Eidos, such as the "Tomb Raider", "Hitman", "Deus Ex", and "Championship Manager" franchises.
Document 9: Hitman 2: Silent Assassin: Hitman 2: Silent Assassin is a stealth video game developed by IO Interactive and published by Eidos Interactive for Microsoft Windows, PlayStation 2, Xbox and GameCube. It is the second installment in the "Hitman" video game series and the sequel to "". The game was re-released for Windows through the Steam online distribution service and later a DRM-free version was available through GOG.com. A commercial success, the game has sold more than 3.7 million copies as of 23 April 2009 and is the best selling "Hitman" game to date.
Document 10: Hitman: Codename 47: Hitman: Codename 47 is a stealth video game developed by IO Interactive and published by Eidos Interactive exclusively for Microsoft Windows. It is the first installment in the "Hitman" video game series.
Document 11: Hitman (series): Hitman is a stealth video game series developed by the Danish company IO Interactive. Previously published by Eidos Interactive and Square Enix. IO Interactive remained a subsidiary of Square Enix until 2017, when Square Enix started seeking sellers for the studio. IO Interactive completed a management buyout, regaining their independent status and retaining the rights for "Hitman", in June 2017. The series is available on Microsoft Windows as well as several video game consoles, including the Xbox, PlayStation 2, GameCube, Xbox 360, PlayStation 3, Xbox One and PlayStation 4. The franchise includes two novels, "" written by William C. Dietz, followed by "Hitman: Damnation".
Document 12: Hitman: Contracts: Hitman: Contracts is a stealth video game developed by IO Interactive and published by Eidos Interactive for Microsoft Windows, PlayStation 2 and Xbox. It is the third installment in the "Hitman" video game series. As of April 2009, the game has sold around 2 million copies.
Document 13: Consent to Kill: Consent to Kill is the seventh novel by Vince Flynn and the sixth in a series that features CIA counterterrorism agent Mitch Rapp. In this thriller, Flynn focuses on the war on terror exploring all its aspects, from the president of the United States, to the CIA, the foot soldiers and the potentially deadly terrorists.
Document 14: Deus Ex: Invisible War: Deus Ex: Invisible War is an action role-playing video game developed by Ion Storm and published by Eidos Interactive for Microsoft Windows personal computers (PC) and the Xbox home console. The game released in 2003 in North America and 2004 in other regions. It is the second game in the "Deus Ex" series, and a direct sequel to the original game. The gameplay—combining first-person shooter, stealth and role-playing elements—features exploration and combat in environments connected to multiple city-based hubs, in addition to quests that can be completed in a variety of ways and flexible character customization. Conversations between characters feature a variety of responses, with options in conversations at crucial story points affecting how some events play out.
Document 15: IO Interactive: IO Interactive A/S (IOI) is an independent Danish video game developer based in Copenhagen, Denmark, best known for developing the "Hitman" series. The company was founded under the name ASX Nr. 14.811 ApS on 1 November 1990, and became Mermaid Invest ApS on 24 May 1992. On 16 September 1998, the Reto-Moto development group turned the company into IO Interactive ApS, and into IO Interactive A/S on 14 April 2000. Originally a private studio, they were purchased in 2004 by their publisher, Eidos Interactive; Eidos was subsequently taken over by Square Enix Europe, a subsidiary of Square Enix, in 2009. IO Interactive remained a subsidiary of Square Enix until 2017, when Square Enix started seeking buyers for the studio. IO Interactive completed a management buyout, regaining their independent status and retaining the rights for "Hitman", in June 2017.
ground_truth: Hitman: Enemy Within