
Based on your book
by Ben Aaronovitch
Peter Grant is a probationary constable in the Metropolitan Police who expects a career of filing paperwork until a chance encounter with a ghost lands him in the Folly, the department responsible for London's supernatural problems. This series turns the city into a character itself, blending the rigid bureaucracy of police work with the chaotic, rules-based magic of ancient spirits and river gods. The writing is sharp, funny, and deeply rooted in the geography of London, making the magical threats feel as tangible as a rainy Tuesday. If you enjoy procedurals where the detective is more worried about the correct form to fill out than the monster trying to eat him, you will love this. It is perfect for readers who appreciate dry wit, meticulous world-building, and the idea that the mundane world is just a thin veil over something much stranger.
Since you enjoyed the unique blend of police procedural mechanics and hidden urban magic in the Rivers of London series, these titles were selected to scratch that specific itch. Each pick leans into the trope of the investigator navigating a secret, supernatural society while keeping one foot firmly in the gritty reality of a modern city. Whether you crave the bureaucratic humor of The Rook, the dark, street-level mystery of London Falling, or the surreal, city-centric world-building found in Neverwhere, these books capture that same balance of dry wit and atmospheric tension.
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by Jim Butcher
Like Peter Grant, Harry Dresden is a wizard working with the police to solve supernatural crimes in a gritty urban setting. It shares the same blend of procedural investigation, dry humor, and a protagonist navigating a complex, hidden magical world.
by Neil Gaiman
This book captures the same 'London Below' aesthetic that Aaronovitch fans adore, exploring the secret, magical underbelly of the city. It features an ordinary person thrust into a dangerous, surreal world, mirroring Peter Grant's initial journey.
This novel features a secret government agency dealing with supernatural threats in a contemporary setting, very similar to the Folly. It balances high-stakes supernatural bureaucracy with a witty, first-person narrative voice.
For readers who enjoy the quirkier, more bizarre side of London magic, this book offers a dense, imaginative urban fantasy. It shares the 'hidden history' motif and a protagonist who finds themselves way out of their depth in a magical conspiracy.

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Harper Blaine is a private investigator who gains the ability to see the supernatural, leading her to solve crimes in Seattle. It mirrors the procedural focus of the Rivers of London series while maintaining a grounded, gritty urban fantasy tone.
by Paul Cornell
This series features a group of police officers who begin to see the supernatural side of London, blending gritty police procedural elements with dark magic. It feels like a slightly darker, more intense cousin to the Rivers of London series.
While set in a secondary world, the protagonist is a disgraced former intelligence agent turned drug dealer who solves crimes in the slums. It captures the 'cynical detective' voice and the focus on the seedy, overlooked corners of a city.
Set in New York, this follows a 'half-dead' protagonist who works for the Council of the Dead, managing ghosts and supernatural entities. It shares the urban fantasy procedural vibe and the focus on the everyday life of magical beings.
by Kate Griffin
This book explores the magic inherent in the city of London itself, treating the city as a living, breathing entity. Fans of Aaronovitch’s detailed, almost architectural approach to magic will appreciate the urban-centric world-building.
by Luke Arnold
In a world where magic has died and left the supernatural community struggling, a cynical private investigator tries to make ends meet. It shares the dry, witty narration and the 'investigator in a changed world' trope found in the Rivers of London.

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