Unity (novel)
Unity is a Pocket DS9 novel – part of the  and marking the 10th anniversary of the series – written by S.D. Perry. Published by Pocket Books, it was first released in hardback in .

Summary 
From the book jacket

On the eve of Bajor's formal entry into the Federation, First Minister Shakaar was assassinated, derailing the induction and plunging the planet and station Deep Space 9 into chaos. Investigation into the murder revealed the presence of a parasitic conspiracy threatening not only Bajor's future with the Federation, but the very survival of both. At the same time, the fracturing of Bajor's theology has put its people on the threshold of a startling transformation – and the consequences now rest on the shoulders of Colonel Kira Nerys, who months ago defied the religious authority of her planet by making public an ancient heretical text that challenged the very foundation of the Bajoran faith.

Now, after a harrowing and historic voyage of exploration in the Gamma Quadrant, the weary, wounded crew of Starship Defiant is at last coming home. But the joy of their return is short-lived as the crew becomes swept up in the crisis aboard the station, with many of them confronting personal issues that force them to make life-altering choices. Among those is a grief-stricken Commander Elias Vaughn, who reaches a crossroads in his life's journey and learns the true purpose for which he was touched by the Prophets… as well as the ultimate fate of Captain Benjamin Sisko. And… somewhere on Bajor… a child long awaited is about to be born.

The hunt for the parasites 
It becomes clear that the parasites are on DS9 as well as on Bajor. Julian Bashir is searching for medical insight, while the Federation asks the Cardassians to help out – something which is not entirely welcome across Bajor and the station. When the crew of DS9 finally manages to get hold of a queen, Gard, the supposed Trill assassin of Shakaar Edon volunteers to have the parasite within himself, because it seems obvious that the parasites have some genetic connection to the Trill symbionts. While having the queen inside, the being speaks of the tears and of Bajor, revealing the hideaway of the mother queen.

Kira Nerys decides to go on a rescue mission aboard the  – and ultimately manages to overcome the mother queen – with the surprising help of Wex, who turns out to be none other than Odo, who after having learned of Opaka as well as of the parasites, had decided to go back to DS9, although he would not stay as his work within the Link is not finished.

Elias Vaughn and the prophets 
After having shot his own wife with his daughter watching, Elias Vaughn falls deeper into depression and self-loathing. While on Bajor as part of resolving the parasite crisis, it becomes clear that he can't go on like this. He is released from duty for medical reasons and goes to a monastery where he meets Opaka again. She allows him to have another orb experience…

In his experience, he is Eli, a man who has shot his wife and is in a sanatorium, where he meets Benny Russell. The two get along very well, and it is Benny that helps Eli to overcome his grief and his anger. When the parasite crisis gets worse, Benny understands that he has to go "back", and although Eli does not really know where that is, he follows him and finally finds his way back to reality.

He then starts another approach towards his daughter – because he understands that his relationship to her is not a state, but a process.

The Siskos 
While the O'Briens as well as the remaining Siskos are with Kasidy Yates, they are taken hostage by some of the parasite-infected Bajorans. While the O'Briens are released, Jake Sisko, Joseph Sisko, Judith Sisko and Kas are brought into the monastery (the same one where the mother queen is). Kasidy is about to give birth to her child, with the help of Opaka.

After his experience with Eli(as), Benjamin Sisko finally returns from the celestial temple, realizing that he belongs to the linear beings and that his help is needed. He arrives at the temple just in time to witness the birth of his daughter, Rebecca Jae.

After the mother queen dies, the remaining parasites leaves their hosts and the crisis is over. Bajor finally enters the Federation; during the signing ceremony, all of DS9's staff are there, but also the 's crew, Ambassador Worf, Martok, Odo, Macet, and Grand Nagus Rom and his now pregnant wife Leeta.

Other storylines

Shar 
After having mourned with his bondmates for the late Thriss, Shar decides not to go to Andor, which greatly upsets his zhavey. In the meantime, Prynn Tenmei discovers her romantic feelings for the Andorian science officer and starts to invite him for dates, which he ultimately accepts, not sure what to make of them.

Quark and Ro 
Still both considering leaving DS9 after Bajor enters the Federation, for both Ro Laren and Quark something happens to change their attitude. Ro is left in command when Kira goes on her rescue mission; Ro realizes how much she liked this experience, where she even got a chance to speak quite frankly to Admiral Leonard James Akaar (something she liked, too). And after Bajor joined the Federation, Rom officially appoints Quark to be the ambassador for Ferenginar on Bajor, turning Quark's Bar into an embassy.

Yevir and Kira's attainder 
After some serious talks with Opaka, Vedek Yevir strongly doubts himself and his decisions. The Vedek Assembly then revokes Kira's attainder, making her an official member of Bajor's religion again. Opaka does not think badly of the Ohalu texts, but assures Yevir that the Bajoran people need such new spirit from time to time.

Memorable quotes 
"I suppose you want the office."
 - Kira, to Sisko echoing the very first thing she had said to him in

Background information 
 Although Paramount had mandated that the relaunch series could not include the return of Sisko, Pocket editor Marco Palmieri, who developed the series, hoped that it might be successful enough to reach the tenth anniversary and planned for a special hardcover release to mark it which would see Bajor join the Federation, the birth of Sisko's child and his own return. With the success of the Avatar duology, Palmieri took his plan to Paramount licensing for approval, receiving it without hesitation. ()
 Unity was originally scheduled for release in late 2002, but was pushed back first to April 2003, then November of that year, due to author S.D. Perry's pregnancy. (, )
 The novel begins, in similar style to Avatar, Book One, with a timeline of events in the relaunch series to date.
 Ashalla, the capital city of Bajor, is listed on the title page as the location of one of Pocket Books' offices.
 Cover art was done by Cliff Nielsen.

Characters 

Kira Nerys  Kira's Starfleet commission is reactivated by Admiral Akaar
Elias Vaughn  Starfleet commander, the CO of Defiant
Prynn Tenmei  Ensign aboard DS9, daughter of Elias Vaughn
Julian Bashir  chief medical officer on DS9
Ezri Dax  CO of the Defiant
Sam Bowers  Tactical ops
Kasidy Yates  Wife of the Emissary (Ben Sisko)
Miles O'Brien  Former chief engineer on DS9, now teacher on Earth
Keiko O'Brien  Wife of Miles; accepts a job on Cardassia Prime to help with the rebuilding efforts
Molly O'Brien  Daughter of Miles and Keiko
Kirayoshi O'Brien  Son of Miles and Keiko
Nog  Chief engineer on DS9
Quark  Barkeeper; becomes official ambassador of Ferenginar on Bajor; his bar serves as embassy
Ro Laren  Chief of Security on DS9
Joseph Sisko  Ben's father
Judith Sisko  Ben's sister
Jake Sisko  Ben's son
Benjamin Sisko  Former CO of DS9; returns from the Celestial Temple
Rebecca Jae Sisko Ben and Kasidy's daughter
Leonard James Akaar  Starfleet admiral
Charivretha zh'Thane  Andorian member of the Federation council, zhavey (mother) of Thirishar
Thirishar ch'Thane  Ensign aboard DS9 and the Defiant
Gul Macet  Captain of the Trager
Opaka  Former kai of Bajor
Asarem Wadeen  Bajoran Prime minister
Lenaris Holem  Bajoran general
Rom  Grand Nagus of the Ferengi
Leeta  Wife to Rom
Benny Russell  Ben Sisko's alter ego
Odo  Changeling
Beverly Crusher
Martok 
Jean-Luc Picard 
Worf

References 
Bajoran Militia With the entry of Bajor into the Federation, the Militia is absorbed into Starfleet
Starfleet conspiracy The term used to describe the attempt by the parasitic beings to take over Starfleet in 2364; further analysis in the wake of Shakaar's assassination showed that the purpose of many of the inexplicable orders carried out in that period was to place Starfleet assets in a position to attack .

External link 
 

cs:Unity
de:Einheit (Roman)
fr:Unity
Novels