About Martyn V. Halm and the Amsterdam Assassin Series

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The suspense fiction Amsterdam Assassin Series revolves around freelance assassin and corporate troubleshooter Katla Sieltjes.

Under the name Loki Enterprises, Katla specialises in disguising homicide and providing permanent solutions for both individuals and corporations.

With authentic details and brisk action against the backdrop of the notorious Dutch capital, featuring a devious heroine and a supporting cast of singular characters, the Amsterdam Assassin Series gives a rare glimpse into local Dutch culture, international terrorism, computer hacking, forensic sciences, martial arts, foreign intelligence services, the psychology of social engineering, and the brutal efficacy of disciplined violence.

Katla's 'Loki Enterprises' business card, designed by Martyn V. Halm. Click on the card for more information.

(If you’d like to receive a signed card, click on the card for more information.)

The Novels
The first novel in the Amsterdam Assassin Series, Reprobate, marks the first time Katla breaks one of her own rules, and how this affects both her personal and business life.
The second novel, Peccadillo, shows what happens when you attempt a hostile takeover of an assassin’s legitimate business cover.
The third novel, Rogue, has Katla taking a contract she shouldn’t have taken, which brings her to the attention of international intelligence communities.
A fourth novel, working title Ghosting, is in development and slated for release in 2015.
While the novels are stand-alone and can be read out of order, reading them in chronological order might be more enjoyable.

The KillFiles
Between the publications of the novels, the Amsterdam Assassin Series will also feature stand-alone short stories, the Katla KillFiles. The Katla KillFiles chronologically precede the novels in the Amsterdam Assassin Series. Each KillFile features Katla executing one of her contracts before the events in Reprobate, and, while not mandatory reading, each KillFile provides insight both in Katla’s work methods and skill, and additional background information in her character and personal history. The KillFiles can be read out of order, as the contracts are random samples from her past.


Available at Scribd!

For Nook e-readers, go to Barnes & Noble (US) or Nook (UK).

For iBooks to read on your iPad or iPhone, go to iBookstore.

For Kobo and all other e-readers, go to Kobobooks.com.

For Kindle e-books, go to Amazon.com (US), Amazon.co.uk (UK), Amazon.ca (Canada), Amazon.com.au (Australia), Amazon.de (Germany), Amazon.fr (France), Amazon.it (Italy), Amazon.es (Spain), Amazon.co.jp (Japan), Amazon.in (India), Amazon.com.br (Brazil), Amazon.com.mx (Mexico), or your local Amazon…

Follow Martyn on Twitter: @Tao_Of_Violence or contact Martyn by email: katlasieltjes@yahoo.com

About the author:

Martyn V. Halm lives in Amsterdam with his wife Maaike, two children, two cats, and countless imaginary characters vying for attention.

Writing realistic crime fiction is hard work, especially when you’re a stickler for verisimilitude. When your protagonist is a seasoned killer, research can take you right up to Nietzsche’s abyss. Luckily, things get easier after the first few killings…

Apart from being an accomplished prevaricator, Martyn already possessed an eclectic variety of skills that qualified him to write the Amsterdam Assassin Series. Skills he shares with his deadly fictional characters…

Martyn likes stories by Philip K. Dick, Iain (M.) Banks, Vachss, Wiltse, Jim Thompson, Pirsig, Chuck Palahniuk, and Philip Jose Farmer, graphic novels and comics by Andre Franquin, Henk Kuypers, Milo Manara and Jean ‘Moebius’ Giraud. He listens to Freddie Hubbard, John Mayer, Wynton Kelly, James Morrison, Stanley Clarke, Portishead, Tom Waits, Hank Mobley, Radiohead, The Doors, Tony Overwater, Chris Hinze, Talk Talk, Mozart, Miles Davis, Tori Amos, King Crimson, Lou Donaldson, Pink Floyd, Art Farmer, Yes, Lee Morgan, Rammstein, Freddie Redd, Muse, Ludwig Van…


[Covers by Farah Evers Design.]

Katla's 'Loki Enterprises' business card, designed by Martyn V. Halm. Click on the card for more information.

(If you’d like to receive a signed card, click on the card for more information.)

2 Comments on “About Martyn V. Halm and the Amsterdam Assassin Series”

  1. micha polak says:

    Martyn, for people like me, without a credit card, another option to buy your books would be nice!


    • People who cannot go through the regular retailers can order an epub or mobi book straight from me. Just sent an email to katlasieltjes@yahoo.com and specify which book and which format.


      Locked Room – Free
      Microchip Murder – Free
      Fundamental Error – normally 2.99 euro, now* 0.99 euro.
      Reprobate – normally 4.99 euro, now* 2.99 euro.
      Peccadillo – normally 4.99 euro, now* 3.99 euro.
      Rogue – normally 4.99 euro, now* 3.99 euro.

      Total amount: 16.96 euro, regular discount 18.00 euro, now* 12.00 euro.

      Payable to Paypal or bank account, mail me for details.



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