Memory Beta, non-canon Star Trek Wiki

A friendly reminder regarding spoilers! At present the expanded Trek universe is in a period of major upheaval with the finale of Year Five, the Coda miniseries and the continuations of Discovery, Picard and Lower Decks; and the premieres of Prodigy and Strange New Worlds, the advent of new eras in Star Trek Online gaming, as well as other post-55th Anniversary publications. Therefore, please be courteous to other users who may not be aware of current developments by using the {{spoiler}}, {{spoilers}} or {{majorspoiler}} tags when adding new information from sources less than six months old. Also, please do not include details in the summary bar when editing pages and do not anticipate making additions relating to sources not yet in release. 'Thank You


Memory Beta, non-canon Star Trek Wiki

Spoiler warning: Plot and/or ending details follow: The following content contains spoilers!

Oblivion's Gate is the 3rd novel in the Star Trek: Coda trilogy by author David Mack, released in November 2021.


Their final mission is their finest hour.
An impossible task.
Captain Benjamin Sisko takes the Defiant back in time and into a parallel universe, so that he and Data can undo the vile sabotage that triggered the temporal apocalypse.
A shadow rising.
Meanwhile, Admiral William T. Riker's grasp of reality becomes more tenuous by the minute. Can his beloved Deanna Troi free him from madness before it’s too late?
A daring last stand.
Starfleet's heroes risk everything to set time right. But will Captain Jean-Luc Picard let Beverly Crusher and their son die? Or will he destroy the multiverse to save them?


  • Prelude: The Second Splinter
  • Part I: Only Moments Between
  • Part II: Many Possible Worlds
  • Part III: The Measure of a Life
  • Grace Note: What Remains to Be Seen



Leonard James AkaarPava Ek'Noor sh'AqabaaHans BalfeReginald Barclay (mirror 1ST)Julian BashirBorg QueenDomenica CorsiBeverly CrusherEzri Dax (mirror)Sonya GomezK. D. HagemanHrissK'Ehleyr (mirror)KeesoRanul KeruKira NerysRennan Konya (mirror 1ST)KoorLalGeordi La ForgeAili LavenaL'PengBenjamin MaxwellSunai MoraineLisa NeeleyNumber One (dog)OcasioThadiun OkonaMelora PazlarKirsten PerezKell PerimJean-Luc PicardJean-Luc Picard (mirror)Jean-Luc Picard (prime timeline)René PicardSariel RagerXin Ra-HavreiiShenti Yisec Eres ReeWilliam T. RikerNatasha Riker-TroiAlexander RozhenkoBenny RussellSaavik (mirror)Dalit SaraiScardasHuilan Sen'karaBenjamin SiskoSlaytonAneta ŠmrhováData SoongGian SortolloSpockSsuraKelly SwailsKellessar zh'TarashTaurikPrynn TenmeiMor glasch TevThirishar ch'ThaneTolarisPatrick TomlinsonTorvig Bu-Kar-Nguvthe TravelerDeanna Troi (mirror) • Tropp (mirror)TuvokChristine ValeVisaggioWorfYongJack Crusher ProphetSisko Prophet
Referenced only 
Marcus AureliusB-4Caretaker (Nacene)T'Ryssa ChenZefram CochraneJack CrusherData (prime timeline)Sarina DouglasDavid Lloyd GeorgeGorkon (mirror)Ozla GranivErika Hernandez • "Ishan Anjar" • Azeni KorenaMiana LavenaMarlena Moreau (mirror)NogMiles O'BrienRené PicardRobert PicardQuarkRenarWilliam Riker (prime timeline)Ro LarenHoshi Sato IIISedínShinzonJake SiskoRebecca Jae SiskoSpock (mirror)Noonien Soongthe TravelerKestra Troi-RikerThad Troi-RikerT'PelKasidy YatesMin Zife

Starships and vehicles

USS Defiant.

USS Defiant (Defiant-class escort) • CSS DefiantUSS Enterprise-ECSS EnterpriseKlezhkaSleipnirTenak'talarZorzhong


the galaxy

Races and cultures

AndorianAndroidBajoranBetazoidBorgCaitianCapellanChoblikDenobulanDevidianEfrosianElaysianKlingonOkona's speciesPahkwa-thanhProphetsRomulanSaurianSelkieS'ti'achTellariteTrillVulcan
Referenced only 

Science and classification

First Splinter timelineintertimemirror universemultiversespacetechnologytimeuniverseweapon

Technology and weapons

Oblivion's Gatestarship

States and organizations

Galactic CommonwealthKlingon EmpireMemory OmegaRomulan Star Empire

Other references

races and culturesscience





Published Order
Previous novel:
The Ashes of Tomorrow
Star Trek: Coda novels Next novel:
final book in series
Previous story:
More Beautiful Than Death
Stories by:
David Mack
Next story:

External links