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: mafia-romance×
431 books match your taste
1 active filters

EERIEEFFICIENCYEEForceful Godby Michelle HeardCOVER COMING SOON

Forceful God

by Michelle Heard
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: Kings of Mafia
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Forget-Me-Not Bombshell by Caroline Peckham; Susanne Valenti book cover

Forget-Me-Not Bombshell

by Caroline Peckham; Susanne Valenti
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: Mafia Wars
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Forgivable Sins by Adelaide Forrest book cover

Forgivable Sins

by Adelaide Forrest
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: Bellandi Crime Syndicate Readable on its own: recorded
Angsty / EmotionalDark / Brutal
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
criminal familyMafia romanceobsessionpossessive hero
＋ Add to My Library
View Book
Fractured Kingdom by Julia Sykes book cover

Fractured Kingdom

by Julia Sykes
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: Fallen Mafia Prince
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Fragile Longing by Cora Reilly book cover

Fragile Longing

by Cora Reilly
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: Standalone / Born in Blood world Readable on its own: recorded
Spice3/5
Darkness5/10
Obsession7/10
Romance10/10
age gapArranged marriagegriefMafia romance
＋ Add to My Library
View Book
Frozen Heart by Neva Altaj book cover

Frozen Heart

by Neva Altaj
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: Perfectly Imperfect Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance10/10
cold herofamily dutyforced proximityMafia romance
＋ Add to My Library
View Book
Gabriel by Eva Winners book cover

Gabriel

by Eva Winners
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: Legacy of Heathens
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Gangster’s Empire: Leeza & Havel by Nikita Slater book cover

Gangster’s Empire: Leeza & Havel

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 Series: Sinner’s Empire Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
age/power gaplongstanding loveMafia romanceSecond chance
＋ Add to My Library
View Book
EERIEEFFICIENCYEEGhostby A. ZavarelliCOVER COMING SOON

Ghost

by A. Zavarelli
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 Underworld Readable on its own: recorded
Angsty / EmotionalDark / Brutal
Spice4/5
Darkness9/10
Obsession9/10
Romance9/10
captive survivordamaged heroforced proximityhealing
＋ Add to My Library
View Book
Giovanni by Natasha Knight book cover

Giovanni

by Natasha Knight
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: Benedetti Brothers Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness8/10
Obsession9/10
Romance9/10
dangerfamily sagainterconnected charactersMafia romance
＋ Add to My Library
View Book
God of Vengeance by Michelle Heard book cover

God of Vengeance

by Michelle Heard
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: Kings of Mafia
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Goodnight, Sinners by Nikita Slater book cover

Goodnight, Sinners

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 Series: Sinner’s Empire
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
criminal empireestablished couplefamily sagafinale
＋ Add to My Library
View Book
EERIEEFFICIENCYEEGraveby Shantel TessierCOVER COMING SOON

Grave

by Shantel Tessier
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: Dark Kingdom Readable on its own: recorded
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness8/10
Obsession9/10
Romance8/10
dangerinterconnected standalonesMafia romancepossessive hero
＋ Add to My Library
View Book
EERIEEFFICIENCYEEGravehouseby Amo JonesCOVER COMING SOON

Gravehouse

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.
KU Series: Cursed Lovers Duet
Spice4/5
Darkness8/10
Obsession9/10
Romance9/10
Arranged marriageEnemies to loversMafia romancemind games
＋ Add to My Library
View Book
Grievous by J.M. Darhower book cover

Grievous

by J.M. Darhower
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: Scarlet Scars
Angsty / EmotionalDark / Brutal
Spice4/5
Darkness9/10
Obsession9/10
Romance8/10
damaged heroineenemies to alliesMafia romancemonster hero
＋ Add to My Library
View Book
Heart of a Devil by Sadie Kincaid book cover

Heart of a Devil

by Sadie Kincaid
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: London Ruthless
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
Heart of My Monster by Rina Kent book cover

Heart of My Monster

by Rina Kent
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: Monster Trilogy
Spice4/5
Darkness9/10
Obsession10/10
Romance9/10
hidden identity resolvedMafia romancepower coupletrilogy finale
＋ Add to My Library
View Book
Heathens by Sheridan Anne book cover

Heathens

by Sheridan Anne
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: Depraved Sinners
Dark / BrutalObsessive / Possessive
Spice5/5
Darkness10/10
Obsession10/10
Romance9/10
captive heroineEnemies to loversMafia romancenursery-rhyme titles
＋ Add to My Library
View Book
Heavy Crown by Sophie Lark book cover

Heavy Crown

by Sophie Lark
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: Brutal Birthright Readable on its own: recorded
Spice4/5
Darkness7/10
Obsession8/10
Romance10/10
forbidden romanceMafia romancemarriagepower couple
＋ Add to My Library
View Book
Hexed by Emily McIntire book cover

Hexed

by Emily McIntire
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: Never After Readable on its own: recorded
Dark / Brutal
Spice5/5
Darkness7/10
Obsession8/10
Romance10/10
family secretsforbidden romanceMafia romancepower
＋ Add to My Library
View Book
EERIEEFFICIENCYEEHidden Truthsby Neva AltajCOVER COMING SOON

Hidden Truths

by Neva Altaj
Last field verification: Latest verified field; not a full-book review.
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 Confirmed
HEA/HFN Series: Perfectly Imperfect Readable on its own: recorded
Spice4/5
Darkness7/10
Obsession8/10
Romance9/10
assassin heroforced proximityhealingMafia romance
＋ Add to My Library
View Book
Hidden Truths by K. Webster; Nikki Ash book cover

Hidden Truths

by K. Webster; Nikki Ash
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: Truths and Lies Duet
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession9/10
Romance10/10
Arranged marriagedangerous husbanddebt/property heroineEnemies to lovers
＋ Add to My Library
View Book
EERIEEFFICIENCYEEHis as Paymentby Piper StoneCOVER COMING SOON

His as Payment

by Piper Stone
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: Mafia Masters
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
EERIEEFFICIENCYEEHis Captive BratvaPrincessby Jagger ColeCOVER COMING SOON

His Captive Bratva Princess

by Jagger Cole
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: Bratva Captive
Dark / BrutalObsessive / Possessive
Spice4/5
Darkness8/10
Obsession8/10
Romance8/10
dangerenemies-to-lovers elementsforced proximityMafia romance
＋ Add to My Library
View Book
1…56789…18
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.