I live in Amsterdam with my two children, two cats, two rats, and countless imaginary characters vying for attention.
I’m the author of the Amsterdam Assassin Series, a suspense fiction series featuring freelance assassin Katla Sieltjes. An accomplished martial artist, I am an expert in knifework, aikido, and Tenshin Shōden Katori Shintō-ryū (天真正伝香取神道流) bujutsu.
I train to attain Fudōshin in everyday life. I teach Pre-Conflict Control, my own system of conflict resolution coupled with aikido-based non-violent self-defense techniques. I also give courses to help shy people gain more confidence through assertiveness.
Half-blind from a medical mishap, I vape pharmaceutical cannabis daily for therapy-resistant glaucoma. I love music, have an extensive jazz collection, and build my own headphones.
Stories by Martyn
As the whacka-whacka guitar intro of Van Halen’s “Atomic Punk” fills my head, I pick up the pace and David Lee Roth’s shriek segues into Led Zeppelin’s strutting “Black Dog.”