Eerie Efficiency
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: billionaire×
75 books match your taste
1 active filters

The Bad Guy by Celia Aaron book cover

The Bad Guy

by Celia Aaron
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 Readable on its own: recorded
Obsessive / Possessive
Spice5/5
Darkness9/10
Obsession10/10
Romance9/10
beauty and the beastbillionairecaptive romanceforced proximity
＋ Add to My Library
View Book
The Castle by Skye Warren book cover

The Castle

by Skye Warren
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: Endgame
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness7/10
Obsession9/10
Romance9/10
age gapbillionaireEnemies to loverspossession
＋ Add to My Library
View Book
The Con Artist by Kitty Thomas book cover

The Con Artist

by Kitty Thomas
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 Arts Readable on its own: recorded
Spice5/5
Darkness8/10
Obsession9/10
Romance8/10
art forgeryBDSMbillionairecaptive/captor
＋ Add to My Library
View Book
The Deception by Nikki Sloane book cover

The Deception

by Nikki Sloane
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: Filthy Rich Americans
Spice5/5
Darkness7/10
Obsession8/10
Romance10/10
betrayalbillionairedeceptionelite family
＋ Add to My Library
View Book
The Devil’s Claim by Gemma James book cover

The Devil’s Claim

by Gemma James
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 Series: Devil’s Kiss
Obsessive / Possessive
Spice5/5
Darkness9/10
Obsession10/10
Romance9/10
BDSMbillionaireblackmailboss/employee
＋ Add to My Library
View Book
The Devil’s Kiss by Gemma James book cover

The Devil’s Kiss

by Gemma James
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 Series: Devil’s Kiss
Obsessive / Possessive
Spice5/5
Darkness10/10
Obsession10/10
Romance9/10
BDSMbillionaireblackmailboss/employee
＋ Add to My Library
View Book
The Devil’s Spawn by Gemma James book cover

The Devil’s Spawn

by Gemma James
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 Series: Devil’s Kiss
Obsessive / Possessive
Spice5/5
Darkness9/10
Obsession10/10
Romance9/10
BDSMbillionaireblackmailboss/employee
＋ Add to My Library
View Book
The Devil’s Wife by Gemma James book cover

The Devil’s Wife

by Gemma James
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 Series: Devil’s Kiss
Obsessive / Possessive
Spice5/5
Darkness9/10
Obsession10/10
Romance9/10
BDSMbillionaireblackmailboss/employee
＋ Add to My Library
View Book
The Dominant by Tara Sue Me book cover

The Dominant

by Tara Sue Me
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 Submissive
Spice5/5
Darkness6/10
Obsession8/10
Romance10/10
BDSMbillionairecontractemotional walls
＋ Add to My Library
View Book
The Fine Print by Lauren Asher book cover

The Fine Print

by Lauren Asher
Field verification date: Not recorded yet
KU HEA/HFN Series: Dreamland Billionaires Readable on its own: recorded
Spice4/5
Darkness2/10
Obsession5/10
Romance9/10
billionaireboss/employeeclass differenceforced proximity
＋ Add to My Library
View Book
The Game Maker by Kitty Thomas book cover

The Game Maker

by Kitty Thomas
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 Readable on its own: recorded
Obsessive / Possessive
Spice5/5
Darkness9/10
Obsession10/10
Romance9/10
billionairecaptivityforced proximitymind games
＋ Add to My Library
View Book
The Initiation by Nikki Sloane book cover

The Initiation

by Nikki Sloane
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: Filthy Rich Americans
Spice5/5
Darkness7/10
Obsession7/10
Romance9/10
arranged engagementbillionaireelite familyinitiation ritual
＋ Add to My Library
View Book
The Knight by Skye Warren book cover

The Knight

by Skye Warren
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: Endgame
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness7/10
Obsession9/10
Romance9/10
age gapbillionaireEnemies to loverspossession
＋ Add to My Library
View Book
The Obsession by Nikki Sloane book cover

The Obsession

by Nikki Sloane
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: Filthy Rich Americans
Obsessive / Possessive
Spice5/5
Darkness7/10
Obsession8/10
Romance10/10
betrayalbillionaireelite familyengagement
＋ Add to My Library
View Book
The Pawn by Skye Warren book cover

The Pawn

by Skye Warren
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: Endgame
Spice5/5
Darkness8/10
Obsession9/10
Romance9/10
billionairechess motifEnemies to loversforced proximity
＋ Add to My Library
View Book
The Redemption by Nikki Sloane book cover

The Redemption

by Nikki Sloane
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: Filthy Rich Americans Readable on its own: recorded
Dark / Brutal
Spice5/5
Darkness6/10
Obsession7/10
Romance10/10
age gapbillionaireelite familysecond chance at power
＋ Add to My Library
View Book
The Takeover by T.L. Swan book cover

The Takeover

by T.L. Swan
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 Miles High Club Readable on its own: recorded
Spice5/5
Darkness4/10
Obsession7/10
Romance10/10
billionairecorporate takeoverEnemies to loversfamily romance
＋ Add to My Library
View Book
The Training by Tara Sue Me book cover

The Training

by Tara Sue Me
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 Submissive
Spice5/5
Darkness5/10
Obsession7/10
Romance10/10
BDSM trainingbillionairedomestic intimacyestablished couple
＋ Add to My Library
View Book
The Unwanted Wife by Natasha Anders book cover

The Unwanted Wife

by Natasha Anders
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: Unwanted Readable on its own: recorded
Spice3/5
Darkness5/10
Obsession6/10
Romance10/10
billionairegrovelMarriage in troublemiscommunication
＋ Add to My Library
View Book
The Villain by L.J. Shen book cover

The Villain

by L.J. Shen
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: Boston Belles Readable on its own: recorded
Angsty / Emotional
Spice4/5
Darkness5/10
Obsession8/10
Romance10/10
billionairecold heroforced proximitygrumpy/sunshine
＋ Add to My Library
View Book
EERIEEFFICIENCYEEToxic Love Storyby Nikita SlaterCOVER COMING SOON

Toxic Love Story

by Nikita Slater
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 Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
billionairefamily intrigueforced marriageobsession
＋ Add to My Library
View Book
Twisted Love by Ana Huang book cover

Twisted Love

by Ana Huang
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: Twisted Readable on its own: recorded
Angsty / EmotionalObsessive / Possessive
Spice4/5
Darkness5/10
Obsession8/10
Romance10/10
billionaireBrother's best friendforced proximitygrumpy/sunshine
＋ Add to My Library
View Book
Two for the Show by Skye Warren book cover

Two for the Show

by Skye Warren
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: Hughes
Angsty / EmotionalSuspenseful / Tense
Spice3/5
Darkness5/10
Obsession4/10
Romance9/10
billionaireFake engagementfamily secretshurt/comfort
＋ Add to My Library
View Book
EERIEEFFICIENCYEETyrant Billionaireby Isabella StarlingCOVER COMING SOON

Tyrant Billionaire

by Isabella Starling
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: Tyrant Dynasty Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness8/10
Obsession9/10
Romance10/10
BDSMbillionaireEnemies to loversobsession
＋ Add to My Library
View Book
1234
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.