Eerie Efficiency

Browse Dark Romance Books

Search the library, set your intensity, and narrow the shelf without committing to a guided match.

Find a Book in One Tap Browse by Trope
Trope: betrayal×
66 books match your taste
1 active filters

EERIEEFFICIENCYEEKings of Underlandby C.M. StunichCOVER COMING SOON

Kings of Underland

by C.M. Stunich
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Allison's Harem of Hearts
Dark / Brutal
Spice3/5
Darkness6/10
Obsession7/10
Romance7/10
betrayalcourt intrigueDark fantasyEnemies to lovers
EERIEEFFICIENCYEELike Grim Death: PartOneby K.V. RoseCOVER COMING SOON

Like Grim Death: Part One

by K.V. Rose
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Unsainted
Angsty / EmotionalDark / Brutal
Spice5/5
Darkness10/10
Obsession9/10
Romance8/10
betrayalcultensembleobsession
EERIEEFFICIENCYEELike Grim Death: PartTwoby K.V. RoseCOVER COMING SOON

Like Grim Death: Part Two

by K.V. Rose
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Unsainted
Spice5/5
Darkness10/10
Obsession9/10
Romance8/10
betrayalcultensembleobsession
Mafia Casanova by M. Robinson & Rachel Van Dyken book cover

Mafia Casanova

by M. Robinson & Rachel Van Dyken
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: Sinacore Crime Family Readable on its own: recorded
Dark / Brutal
Spice4/5
Darkness7/10
Obsession8/10
Romance9/10
betrayalforbidden lovelove trianglemafia family
Mafia Darling by Mila Finelli book cover

Mafia Darling

by Mila Finelli
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: The Kings of Italy
Spice5/5
Darkness9/10
Obsession10/10
Romance10/10
betrayalburn-the-world devotionduet conclusionEnemies to lovers
EERIEEFFICIENCYEEMalum: Part 1by Amo JonesCOVER COMING SOON

Malum: Part 1

by Amo Jones
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Elite Kings Club
Obsessive / Possessive
Spice4/5
Darkness9/10
Obsession9/10
Romance8/10
betrayalelite kingsEnemies to loversobsession
EERIEEFFICIENCYEEMalum: Part 2by Amo JonesCOVER COMING SOON

Malum: Part 2

by Amo Jones
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Elite Kings Club
Obsessive / Possessive
Spice4/5
Darkness9/10
Obsession9/10
Romance8/10
betrayalEnemies to loversobsessionrevenge
Nectar of the Wicked by Ella Fields book cover

Nectar of the Wicked

by Ella Fields
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Deadly Divine
Spice5/5
Darkness8/10
Obsession9/10
Romance9/10
betrayalchangeling heroinedark romantasyEnemies to lovers
EERIEEFFICIENCYEEObedienceby Gemma WeirCOVER COMING SOON

Obedience

by Gemma Weir
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: Alphaholes
Obsessive / Possessive
Spice5/5
Darkness8/10
Obsession10/10
Romance10/10
betrayalcontrol vs freedomdark romanceEstablished marriage
EERIEEFFICIENCYEEOn Edgeby K.G. ReussCOVER COMING SOON

On Edge

by K.G. Reuss
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Mayfair University
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness9/10
Obsession9/10
Romance9/10
betrayalcollegeestablished groupgroup relationship
EERIEEFFICIENCYEEOn Every Streetby Karina HalleCOVER COMING SOON

On Every Street

by Karina Halle
Field verification date: Not recorded yet
Series: The Artists Trilogy
Obsessive / Possessive
Spice4/5
Darkness9/10
Obsession10/10
Romance9/10
betrayalCon artistcriminal herofirst love
EERIEEFFICIENCYEEOne Loveby Lili St. GermainCOVER COMING SOON

One Love

by Lili St. Germain
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Gypsy Brothers
Angsty / EmotionalDark / Brutal
Spice4/5
Darkness10/10
Obsession8/10
Romance7/10
betrayalbiker gangforbidden loveMC
EERIEEFFICIENCYEEOwned by the Faeby Kyra AlessyCOVER COMING SOON

Owned by the Fae

by Kyra Alessy
Field verification date: Not recorded yet
HEA/HFN Series: The Dark Realms
Dark / Brutal
Spice4/5
Darkness10/10
Obsession9/10
Romance7/10
betrayalcaptivityEnemies to loversrevenge
EERIEEFFICIENCYEEPlayhouseby Amo JonesCOVER COMING SOON

Playhouse

by Amo Jones
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Cursed Lovers Duet
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
age gapbetrayalfamous athletefolklore
Queen of Myth and Monsters by Scarlett St. Clair book cover

Queen of Myth and Monsters

by Scarlett St. Clair
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: Adrian X Isolde
Spice4/5
Darkness7/10
Obsession7/10
Romance8/10
betrayalestablished couplemagicpolitical intrigue
EERIEEFFICIENCYEERaw Bloody Powerby Dee GarciaCOVER COMING SOON

Raw Bloody Power

by Dee Garcia
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Readable on its own: recorded
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
betrayalbully-to-lovers-to-enemies-to-loverscaptive romanceEnemies to lovers
Reviving Izabel by J.A. Redmerski book cover

Reviving Izabel

by J.A. Redmerski
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: In the Company of Killers
Dark / Brutal
Spice3/5
Darkness9/10
Obsession8/10
Romance7/10
assassinsbetrayalcaptivity historycriminal organization
Run Posy Run by Cate C. Wells book cover

Run Posy Run

by Cate C. Wells
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
KU HEA/HFN Series: Underboss Insurrection Readable on its own: recorded
Dark / BrutalFunny / Banter-Heavy
Spice4/5
Darkness7/10
Obsession9/10
Romance9/10
betrayalchaseforced proximitygrovel
Sea of Ruin by Pam Godwin book cover

Sea of Ruin

by Pam Godwin
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: Sea of Ruin Readable on its own: recorded
Dark / BrutalGothic / Atmospheric
Spice5/5
Darkness9/10
Obsession9/10
Romance9/10
betrayalcaptivityEnemies to loversforced proximity
Seeds of Iniquity by J.A. Redmerski book cover

Seeds of Iniquity

by J.A. Redmerski
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: In the Company of Killers
Dark / Brutal
Spice3/5
Darkness9/10
Obsession8/10
Romance7/10
assassinsbetrayalcaptivity historycriminal organization
Sold to the Fae by Kyra Alessy book cover

Sold to the Fae

by Kyra Alessy
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
Series: The Dark Realms
Dark / Brutal
Spice3/5
Darkness9/10
Obsession9/10
Romance7/10
betrayalcaptivityEnemies to loversrevenge
Spiders in the Grove by J.A. Redmerski book cover

Spiders in the Grove

by J.A. Redmerski
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: In the Company of Killers
Dark / Brutal
Spice3/5
Darkness9/10
Obsession8/10
Romance7/10
assassinsbetrayalcaptivity historycriminal organization
EERIEEFFICIENCYEETaken by the HordeKingby Zoey DravenCOVER COMING SOON

Taken by the Horde King

by Zoey Draven
Field verification date: Not recorded yet
Series: Horde Kings of Dakkar
Spice4/5
Darkness5/10
Obsession8/10
Romance9/10
betrayalcaptive romance
The Black Wolf by J.A. Redmerski book cover

The Black Wolf

by J.A. Redmerski
Field verification date: Not recorded yet
Last information check:
?An automated source lookup or an editor’s sourced check was recorded on this date. A lookup may have found no match. This does not mean all Eerie ratings, tropes, content warnings or Kindle Unlimited availability were reverified. Field verification is shown separately.
HEA/HFN Series: In the Company of Killers
Dark / Brutal
Spice3/5
Darkness9/10
Obsession8/10
Romance7/10
assassinsbetrayalcaptivity historycriminal organization
123
Help Eerie stay accurate

See something wrong?

Eerie ID

Reports enter a private editorial review queue. Nothing you submit changes a Book automatically.

Your dark romance companion

Keep Eerie on your home screen

Install Eerie Efficiency through your browser. Your existing account works here; you may need to sign in again in the app.

iPhone or iPad

  1. Open this site in Safari.
  2. Open the Share menu, then choose Add to Home Screen.
  3. If shown, leave Open as Web App enabled, then tap Add.

Android

Open this site in Chrome. Tap the browser menu, then Install app or Add to Home screen, if available.

Computer

In Chrome or Edge, look for the install icon near the address bar, or use the browser’s app installation menu. Options vary by browser.

If you opened Eerie inside Facebook, Instagram or another app, first open it in Safari or Chrome.

Books, searches, quizzes and your library need an internet connection. Your private reading information is not saved for offline viewing.