Filthy: A brother’s best friend dark bully romance (Heirs of All Hallows’ Book 1)

Name: Filthy: A brother’s best friend dark bully romance (Heirs of All Hallows’ Book 1)
Availability: InStock
Rating: 4.3 (1161 reviews)
Author: Caitlyn Dare

by Caitlyn Dare

Romance Dark Romance

4.3 (1,161)

4.3 stars from 1,161 reviews. Top 88% of Romance books we track.

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Last checked: Jun 28, 2026

Price history: Free – $3.99

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Perfect for you if...

You enjoy dark romance with genuine tension between characters who have real reasons to hate each other before desire takes over.
You're drawn to forbidden family dynamics and the moral grey area that makes you uncomfortable in the best way.
You want a hero who's actually antagonistic, not just brooding, and who makes the heroine work for his redemption.

Maybe not for you if...

You prefer your romance without step-sibling elements or family complications that blur ethical lines.
You need heroes to be fundamentally good people at heart, even if they're rough around the edges.
You're looking for lighthearted banter or feel-good college romance rather than volatile, revenge-driven dynamics.

About this book

Filthy is the first book in the Heirs of All Hallows' dark college romance series. Olivia Beckworth is the twin sister of an All Hallows' Heir. She despises the Heirs who walk the halls like gods, particularly Reese Whitfield-Brown—her brother's former best friend and an Heir who disappeared without explanation. With Reese gone, Olivia believes her secret is safe. When Reese returns seeking revenge against those who hurt him, Olivia's world shifts. He is now her stepbrother. As Reese pursues his vendetta, Olivia finds herself caught between her hatred for him and an undeniable tension that neither can ignore.

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Price History

Kindle price over time. Green zones = periods when the book was free.

Free – $3.99

Currently free. Price has dropped 1 time over the last 3 years.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

Currently around #21K in the Kindle store — a steady mid-list seller. Sales have softened 70% recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

Currently 4.3★ from 1,161 reviews

Gaining approximately 16 new reviews per month. Rating has dipped slightly from 4.4 to 4.3.

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Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.