The Keys of Death

When man tries to play God, no one is safe.

Michaela Collins is a respected small-town animal doctor with a promising future, but she is haunted by a violent past and struggling to find meaning in the present.

When random chance brings a seriously injured dog to her doorstep, Michaela suspects animal abuse and determines to put a stop to it. What she uncovers is a deadly hidden network of exploitation and torture on an epic scale.

Then Michaela learns the shocking truth: the people behind the brutal cover-up are willing to kill to protect their secrets.

The Keys of Death is a fast-paced medical and biotech thriller with a veterinary twist. Everything you love about the suspense genre is here—intelligent plot, vivid settings, and compelling characters—but it’s not just brain candy: the depth of this story will have you pondering its implications long after you’ve turned the last page.

  • Amazon edition:

    ISBN: 978-1511772587

    1st Edition: Published on December 12, 2014 by CreateSpace Independent Platform

    Available in paperback and ebook

    Revised 1st Edition: Published on July 16, 2023 by Studio Numinosity

    Available in paperback, and ebook.

  • “Unexpected, interesting, historical, international. With a twist of beautiful spiritual depth. The fact that the setting is personally familiar to us is icing on the cake. I'm recommending it to my bookish friends!”

    “Her young woman vet, wounded horribly and unwilling to forgive a betrayal of trust, struggles against a hellish conspiracy, and Ms. Walker makes this David vs Goliath tale work by her deft handling of a strong narrative line that easily melds the switchings from one narrator to another to keep the various story elements unfolding into each other clearly.”

    “I really enjoyed this book! It is a real page turner. My favorite genre is mystery/thriller, so I read a lot of these and I can truly say that this is one of the best! The characters are very well-developed and interesting. The author shows a true understanding of her characters. The plot is anything but predictable with lots of twists and turns in a truly unique story. The story and characters take you all over the world, and the author's description of the different countries and cultures make you feel like you are there. I also love that the author touches on some of the philosophical and ethical dilemmas of our day. It gave me a lot to think about and made the book rich and complex.”

    “Described as a medical thriller with a veterinary twist, this fictional novel was a very exciting and captivating read. The plot, without revealing any detail is based upon the ethical dilemma faced by a married (veterinary) couple who discover evidence of animal brutality and abuse, and need to deal with the morality of whether to become whistle blowers…This is a tribute to the writer’s creative and imaginative sense along with her background as a licensed and practicing veterinarian. Just when the reader has solved the mystery, another “curve ball” is thrown into the milieu, making one question what it has to do with the story. But Walker has tied it all together in a fascinating story that is well worth reading. I look forward to her future books.”

    “Being a veterinarian, I appreciated the understanding of veterinary medicine and the daily life of a small animal practitioner the author brought. The author has a masterful ability to present modern ethical dilemmas through the vehicle of an exciting, captivating story.”

    “Loved this book, medical content and action galore. Read this very quickly as I didn’t want to put it down.”

Available on Amazon: paperback and ebook (Kindle)

Available at Barnes & Noble: ebook (Nook)