Dirk Greyson

Author Information
Dirk Greyson's Latest Book

Newest Release

  • Bibliography:
    15 Books (2 Series)
  • First Book:
    May 2015
  • Latest Book:
    September 2025
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Full Series List in Order

Day and Knight

1 - Day and Knight (May-2015)
2 - Sun and Shadow (Nov-2015)
3 - Dawn and Dusk (May-2016)

Yellowstone Wolves

1 - Challenge the Darkness (Sep-2015)
2 - Darkness Threatening (Feb-2016)
3 - Darkness Rising (Feb-2017)

Multi-Author Series List

2019 Advent Calendar: Homemade for the Holidays

Notes from Home (Dec-2019)

Book List in Order: 15 titles

  • Day and Knight

    Day and Knight - 1

    Day and Knight: Book OneAs former NSA, Dayton (Day) Ingram has national security chops and now works as a technical analyst for Scorpion. He longs for fieldwork, and scuttling an attack gives him his chance. He's smart, multilingual, and a technologi...

  • Challenge the Darkness

    Yellowstone Wolves - 1

    Yellowstone Wolves: Book OneWhen alpha shifter Mikael Volokov is called to witness a challenge, he learns the evil and power-hungry Anton Gregor will stop at nothing to attain victory. Knowing he will need alliances to keep his pack together, Mikael ...

  • An Assassin's Holiday

    Brick Colton has been hired to kill Santa Claus -- or at least the kindhearted accountant playing Santa for the kids in an orphanage. Brick grew up in an orphanage himself, but that isn’t the only thing bothering him about the contract on Robin Mar...

  • Sun and Shadow

    Day and Knight - 2

    Sequel to Day and KnightDay and Knight: Book TwoDayton “Day” Ingram is recovering from an injury suffered in Mexico -- and from his failed relationship with fellow Scorpion agent, Knight. While researching an old government document, Day realizes...

  • Darkness Threatening

    Yellowstone Wolves - 2

    <p><b><i>Sequel to Challenge the Darkness<br/>Yellowstone Wolves: Book Two</i></b></p><p>Fredrik is back from college and trying to stay out of his power-hungry brother's way, until his brother takes a ...

  • Dawn and Dusk

    Day and Knight - 3

    <p><b><i>Sequel to Sun and Shadow<br/>Day and Knight: Book Three</i></b></p><p>For Scorpion agents Day and Knight, their relationship is slow to develop, and trust is hard to build. Then Day's brother, ...

  • Flight or Fight

    Life in the big city wasn’t what Mackenzie "Mack" Redford expected, and now he’s come home to Hartwick County, South Dakota, to serve as sheriff.Brantley Calderone is looking for a new life. After leaving New York and buying a ranch, he’s settl...

  • Playing with Fire

    Jim Crawford was born wealthy, but he turned his back on it to become a police officer. Add that to his being gay, and he’s definitely the black sheep of the family.Dr. Barty Halloran grew up with lessons instead of friends and toys and as a result...

  • Darkness Rising

    Yellowstone Wolves - 3

    <p><b><i>Sequel to Darkness Threatening<br/>Yellowstone Wolves: Book Three</i></b></p><p>The last thing Tobias, alpha of the small Greenview Pack, expects is to find a lost human asleep in his storage b...



  • Lost Mate

    Wolf shifter Falco Gladstone knew Carter McCloud was his mate when they were in seventh grade, but school and the foster care system tore them apart. Years later, Falco is second in command of his Michigan pack, serving under an uncle who cares more ...

  • Hell and Back

    Seventeen years ago, Forge Reynolds fell in love… and had his heart broken. When Staff Sergeant Gage Livingston was brought into Forge's Army field hospital, temporarily paralyzed, Forge sat with him, read his letters, answered his mail, and formed...

  • Notes from Home

    2019 Advent Calendar: Homemade for the Holidays

    While deployed on a covert mercenary assignment, Johnny doesn’t have much in the way of holiday cheer. But the mysterious notes from Dex that somehow appear in his bunk -- reminding him of the gifts, cookies, celebrations, and most of all, love, wa...

  • Prey for Love

    The last three guys Phillip dated are dead. Is he next?When successful businessman Phillip Barone attends a lover’s funeral and discovers he was just the latest of Phillip’s partners to die, Phillip knows he’s in trouble.He also knows just...

  • Fate's Attraction

    Even a wolf shifter can’t defeat fate.Vladimir Corelia is the second son of the pack alpha. He’s happy with his role in the pack, but it seems the fates have other ideas. When the man he finds living in a cave, caring for a shifter baby and a lit...

  • Water Under the Bridge

    Landon Carter has endeavored to put his painful teenage years behind him, striving to become a secure, contented man who knows what he wants and has the confidence to get it. All his self-assurance threatens to crumble when he returns to his hometown...

Frequently Asked Questions (FAQ)

Dirk Greyson has published 15 books.

The next book by Dirk Greyson, Water Under the Bridge, will be published in September 2025.

The first book by Dirk Greyson, Day and Knight, was published in May 2015.

Yes. Dirk Greyson has 2 series.
Author Series
Multi-Author Series
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