Constantine Capers Series

  • Cover of the book titled "Constantine Capers: The Pennington Perplexity" by Natalie Brianne, featuring a stylized cityscape background, white silhouettes of a dancing man and woman holding hands, a zeppelin, and decorative borders.

    The Pennington Perplexity

    You wouldn’t expect a detective with Sherlockian deductive skills to have amnesia, but Byron Constantine isn’t exactly the detective you’d expect.

  • Book cover titled 'Flashes of Memory: Constanceine Capers' by Natalie Brianne, featuring a silhouette of a man in a hat, a silhouette of a woman looking into a telescope, a vintage pocket watch, and a city skyline in the background with decorative floral elements.

    Flashes of Memory

    A continuation of the Constantine series. After an encounter with a woman from his past, Byron begins to remember more and more each day. But he never remembers Mira Blayse.

  • Book cover for 'Constantine Capers' by Natalie Brianne, featuring silhouettes of a woman, a man, and a man in a top hat with a gun, against a backdrop of the Eiffel Tower and city skyline at night, with decorative borders and a masquerade mask.

    There Comes a Midnight Hour

    Cloaked in the shadows at a midnight masquerade, a killer lies in wait. Dancers waltz to and fro—completely unaware of the danger lurking in their midst. The third installment in the Constantine Capers Series.

  • Book cover for "Constantine Capers: The Veil of Death" by Natalie Brianne, featuring silhouettes of a woman, a man, and a woman in a vintage dress, with a dark green background, trees, and a Victorian house.

    The Veil of Death

    With her uncle’s wedding on the horizon, Mira Blayse longs for a moment of peace. But peace is a luxury she can't afford—not after the fires in the catacombs, the truth about The Charger, and the knowledge that corruption reaches deep into the heart of the Parisian police.

The Pennington Perplexity

Book One

In a city haunted by fear, some secrets refuse to stay buried—and it may be safer to forget them.

London, 1888

Mira Blayse is determined to uncover the truth behind her parents’ deaths in 1870. With an artist’s eye, she notices what others miss—but her investigations thus far have led nowhere. One morning at a café, she sketches a mysterious stranger, unaware that she is capturing the features of the man who will help her solve the case once and for all.

Byron Constantine is a brilliant detective, but his mind is fractured. He lives day-to-day, desperately fighting to hold onto his memories, only for them to slip away as he sleeps.

Assuming the role of his secretary, Mira’s sharp eye for detail is the perfect complement to Byron’s deductive genius. More than an assistant, she bridges the gaps in his memory. Together, they tackle a case from Scotland Yard: the suspicious death of airship operator Clement Pennington.

With the Whitechapel murders dominating London, they uncover hidden schemes and shadows of a secret society that may hold answers about Mira’s own mystery. As the danger closes in, their partnership deepens—and Byron realizes there may be one memory he cannot afford to lose.

The first book in a gripping historical mystery series best enjoyed in order.

15th Annual Whitney Awards Finalist

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A book titled "Constantine Capers" by Natalie Brianne is surrounded by various decorative items on a table, including a clock, a pen, ink bottle, a vintage clock, stacks of old books, and vintage-inspired decorations.

Flashes of Memory

Book Two

The last time Byron Constantine took a case from Her Majesty, he lost his memory. But even he knows not to refuse Queen Victoria.

London, 1888

When Mira Blayse agreed to be a personal secretary to an amnesiac detective, she never expected to be invited to Buckingham Palace, yet here she is meeting with the Prime Minister. They are assigned to protect the British Ambassador to the Ottoman Empire. But neither knew that this would lead to murder, espionage, and not one, but three mysteries. 

After an encounter with a woman from his past, Byron begins to regain his memory bit by bit. At first Mira is overjoyed at his recovery, but it soon becomes apparent that he still forgets her each time he wakes up.

This new development, family expectations and the ever looming Order of Circe all threaten their unique partnership, the truth, and their lives. With Mira’s heart pulled every which way, she struggles to accept that the man she loves will never remember her.

16th Annual Whitney Awards Finalist

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A book titled 'Constantine Capers' by Natalie Brianne, featuring a silhouette of a woman and a clock on the cover, surrounded by vintage items including clocks, photos, a fountain pen, a bottle of ink, and decorative jewelry.

There Comes a Midnight Hour

Book Three

Cloaked in the shadows at a midnight masquerade, a killer lies in wait. Dancers waltz to and fro—completely unaware of the danger lurking in their midst.


Paris 1888

Mira Blayse had always dreamed of going to Paris, but she never imagined a murderer would lead her to the City of Light. Reunited with Byron, the two of them delve into the heart of Parisian society, determined to ensure that justice is served, no matter the cost.

Yet, as they uncover the intricate web of deception woven by the Order of Circe and their operatives, Mira finds herself ensnared in a deadly game of cat and mouse.

With tensions mounting and secrets unraveling on every side, the key to unlocking the truth lies in the identity of one of Circe’s leaders—the enigmatic Number Three. But in a world of false faces and hidden agendas, can Mira uncover the truth before it’s too late?

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A purple book titled 'Constantine Capers: There Comes a Midnight Hour' by Natalie Brianne on a table with various items including a vintage clock, a bottle of ink, a fountain pen, a small clock, a decorative turtle, and decorative papers and trinkets related to Paris or London.

The Veil of Death

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Book Four

In a city ruled by veils and shadows, even love can become a dangerous game.

Paris 1889

With her uncle’s wedding on the horizon, Mira Blayse longs for a moment of peace. But peace is a luxury she can't afford—not after the fires in the catacombs, the truth about The Charger, and the knowledge that corruption reaches deep into the heart of the Parisian police.

When death comes far too close to home, Mira and Byron are pulled into a tangled web of deception and rising political tensions. General Boulanger’s rising popularity in France—and the dark secrets behind it—hint at something far worse than scandal. Unrest is spreading across Europe, and Mira knows that if Circe is involved, war will follow.

But Mira isn’t just fighting against The Order. She’s guarding secrets that could destroy her family—and uncovering more that could upend her relationship with Byron. His memory is slipping again. And he’s hiding something. Then again… so is she.
As old enemies circle and new threats emerge, Mira must decide how much truth to reveal—and how much she's willing to risk for justice.

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A book titled 'Constantine Capers: The Veil of Death' by Natalie Brianne placed on a table surrounded by decorative items, including a clock, ink bottle with a pen, jewelry, flowers, a pen, and various papers, with elements of London, such as Big Ben, in the background.

Short Stories and Novellas

  • An elegant vintage room with a wooden window, ornate curtain, antique chairs, and a desk with decorative objects, lit by natural daylight.

    Byron's Oblivion

    Byron Constantine is a detective with Sherlockian deductive skills. So why can't he figure out his own little mystery? From the black eye that appeared overnight to the abrupt change in seasons, something isn't adding up.

  • Group of six sheep and one sheepdog walking towards the camera on a grassy field with rolling hills in the background.

    The Great Sheep Panic

    Things are changing at Scotland Yard, and now Byron needs to prove himself if he's to continue to work with Inspector Thatcher and Officer Wensley. He's more than happy to do so but...why does it have to be sheep?

  • A skull among rocks on a dark background.

    In the Silence of the Catacombs

    Byron left Mira at the boarding house, intent on finding the truth about that fateful night near the Trocedoro. But with Circe lurking behind every corner, things are never as they seem.

  • Decorative living room with a tufted blue chaise lounge, ornate wallpaper, a wooden chest with a mirror, a Christmas tree decorated with ornaments and lights, a round table with vases and books, and warm lighting from wall sconces and candles.

    The Forgotten Letter

    With Christmas just days away, Mira Blayse thought her holiday would be quiet and uneventful—until she finds a hidden note stitched into a borrowed dress. The letter, lost for decades, hints at a forgotten romance, and Mira can't resist uncovering the mystery for her friend, Klasha.

Available on Kindle Unlimited!
  • Digital portrait of a young man with brown hair and blue eyes, wearing a black jacket and white shirt, against a blue gradient background.

    Byron Constantine

    A detective with anterograde amnesia. Even if he doesn’t remember that.

  • Digital illustration of a woman with wavy auburn hair, green eyes, wearing a purple blazer over a striped blouse with a cameo brooch at the collar, set against a gradient green background.

    Samira Blayse

    An artist trying to find her way in the world who stumbles into a forgetful detective.

  • A man and a woman dressed in vintage clothing leaning on a bridge railing in front of a city skyline with spires. A dirigible airship floats in the sky, and an ornate street lamp is to the right.

    Detective and Secretary

    The two of them use their observational skills to keep the Order of Circe at bay.