The Pennington Perplexity (Constantine Capers Book 1)

The Pennington Perplexity (Constantine Capers Book 1)

by Natalie Brianne

4.3 (730)

4.3 stars from 730 reviews. Top 93% of Mystery Thriller books we track.


FreeFree100% off peak

Last checked: Jun 23, 2026

Price history: Free $3.99

Buy now — it's free!

Price range: Free $3.99

Buy on Amazon - Free

0 readers are tracking this book's price

Fans of these authors will like this...

  • Tasha Suri
  • Beatrice Griffiths
  • Katherine Arden

Fans of these books will like this...

  • The Invisible Life of Addie LaRue
  • The Starless Sea
  • The Silent Companions

Perfect for you if...

  • You love Victorian mysteries with a dash of romance, where the central couple's chemistry matters as much as solving the crime.
  • You're drawn to protagonists with real flaws: Byron's fractured memory means he's unreliable, and that uncertainty keeps you guessing.
  • You enjoy historical fiction set in 1888 London that plays with the darker underbelly beyond Whitechapel, including whispers of shadowy organisations.

Maybe not for you if...

  • You need standalone mysteries that wrap up neatly; this is book one of a series and ends on threads meant to carry forward.
  • You prefer fast-paced plotting; this builds atmosphere and character slowly, with investigation as a vehicle for deeper secrets.
  • You want paranormal or fantasy elements; despite the gothic London setting, this is grounded historical mystery without the supernatural.

About this book

London, 1888. Byron Constantine is a detective suffering from amnesia, his memories fragmenting and slipping away each time he sleeps. Mira Blayse seeks the truth about her parents' deaths, using her artist's eye to notice details others overlook—though her investigations have yielded little so far. When Mira sketches a stranger at a café, she unknowingly captures the likeness of the man who will help her solve her case. Assuming the role of his secretary, Mira's keen observational skills complement Byron's deductive abilities, helping him bridge the gaps in his fractured memory. Together they investigate a case for Scotland Yard: the suspicious death of airship operator Clement Pennington. As the Whitechapel murders grip London, their investigation reveals hidden schemes and a secret society that may connect to Mira's own mystery. As danger intensifies, their partnership deepens, and Byron discovers there may be one memory he cannot afford to lose. This is the first book in a historical mystery series.

Get the best deal every time

We track price drops, sale patterns, and predict when this book will go on offer next.

Price History

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

Sign up to unlock
Free$2.00$3.99Aug '24Jan '25Apr '25Nov '25
Free$3.99

Currently free. Price has dropped 5 times over the last 16 months. Goes on sale roughly every 112 days.

Sales Rank

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

Sign up to unlock
#3#120,125#240,246Sep '24Nov '25Mar '26Jun '26

Currently around #40K in the Kindle store — a steady mid-list seller. Climbing the charts — 32% improvement recently.

Rating & Reviews

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

Sign up to unlock
3.5★4.3★5.0★Sep '24Dec '24Nov '25May '26RatingReviews

Currently 4.3★ from 730 reviews

Gaining approximately 29 new reviews per month. Steady word of mouth growth. Rating has dipped slightly from 4.4 to 4.3.

Sale Prediction

Sign up to unlock
Free$2.00$3.99Aug '24Jan '25Apr '25Nov '25PredictedNov '25

Actual Predicted

This book is currently free. Grab it while you can.

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.

Never miss a deal on this book

Create a free account to unlock full price history charts, sale predictions, and get notified instantly when the price drops.

Natalie Brianne

1 book on Vagrant Press

View all books →

More Mystery Thriller books you might like

View all Mystery Thrillerbooks →

Today's Best Deals

View all deals →
Full House (Janet Evanovich's Full Series Book 1)
Full House (Janet Evanovich's Full Series Book 1)

by Janet Evanovich

$3.99$14.99Deal
4.3 (5,794)
$1.99$16.05
Rama Revealed
Rama Revealed

by Arthur C. Clarke

$1.99$6.82Deal
4.3 (3,659)
$1.99$9.49
Baby Proof: A Novel
Baby Proof: A Novel

by Emily Giffin

$2.99$11.99Deal
4.2 (2,847)
$1.99$12.99
Buy The Pennington Perplexity (Constantine Capers Book 1) on Amazon - Free

Affiliate link. We may earn a small commission at no extra cost to you.