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Faith Bold #27
So Ruthless
Therapists who work with therapy dogs are dying in violent attacks that suggest personal grievance rather than random violence. FBI Agent Faith Bold and Turk must decode why someone is targeting those who bring comfort through therapy—but can Faith stop them before another healer dies?
“A masterpiece of thriller and mystery.”
—Books and Movie Reviews, Roberto Mattos (re Once Gone)
⭐⭐⭐⭐⭐
SO RUTHLESS is Book #27 in a long-anticipated new series by #1 bestseller and USA Today bestselling author Blake Pierce, whose bestseller Once Gone (a free download) has received over 7,000 five star ratings and reviews.
FBI Special Agent Faith Bold doesn’t believe she can ever return to the force after the trauma she’s been through. Suffering from past demons, she feels unfit for duty and content to retire—until Turk walks into her life.
Turk, a former Marine Corps dog, wounded in battle, suffers from his own demons. But he never lets it show as he gives everything to Faith to get her back on her feet.
Each is slow to warm up to each other, but when they do, they are inseparable. Each is equally determined to hunt down the demons chasing them, whatever the cost, and to watch each other’s backs—even at the risk of their own life.
A page-turning and harrowing crime thriller featuring a brilliant and tortured FBI agent, the Faith Bold series is a riveting mystery, packed with non-stop action, suspense, twists and turns, revelations, and driven by a breakneck pace that will keep you flipping pages late into the night. Fans of Rachel Caine, Teresa Driscoll and Robert Dugoni are sure to fall in love.
Future books in the series are also available!
“An edge of your seat thriller in a new series that keeps you turning pages! ...So many twists, turns and red herrings… I can't wait to see what happens next.”
—Reader review (Her Last Wish)
⭐⭐⭐⭐⭐
“A strong, complex story about two FBI agents trying to stop a serial killer. If you want an author to capture your attention and have you guessing, yet trying to put the pieces together, Pierce is your author!”
—Reader review (Her Last Wish)
⭐⭐⭐⭐⭐
“A typical Blake Pierce twisting, turning, roller coaster ride suspense thriller. Will have you turning the pages to the last sentence of the last chapter!!!”
—Reader review (City of Prey)
⭐⭐⭐⭐⭐
“Right from the start we have an unusual protagonist that I haven't seen done in this genre before. The action is nonstop… A very atmospheric novel that will keep you turning pages well into the wee hours.”
—Reader review (City of Prey)
⭐⭐⭐⭐⭐
“Everything that I look for in a book… a great plot, interesting characters, and grabs your interest right away. The book moves along at a breakneck pace and stays that way until the end. Now on go I to book two!”
—Reader review (Girl, Alone)
⭐⭐⭐⭐⭐
“Exciting, heart pounding, edge of your seat book… a must read for mystery and suspense readers!”
—Reader review (Girl, Alone)
⭐⭐⭐⭐⭐
“A masterpiece of thriller and mystery.”
—Books and Movie Reviews, Roberto Mattos (re Once Gone)
⭐⭐⭐⭐⭐
SO RUTHLESS is Book #27 in a long-anticipated new series by #1 bestseller and USA Today bestselling author Blake Pierce, whose bestseller Once Gone (a free download) has received over 7,000 five star ratings and reviews.
FBI Special Agent Faith Bold doesn’t believe she can ever return to the force after the trauma she’s been through. Suffering from past demons, she feels unfit for duty and content to retire—until Turk walks into her life.
Turk, a former Marine Corps dog, wounded in battle, suffers from his own demons. But he never lets it show as he gives everything to Faith to get her back on her feet.
Each is slow to warm up to each other, but when they do, they are inseparable. Each is equally determined to hunt down the demons chasing them, whatever the cost, and to watch each other’s backs—even at the risk of their own life.
A page-turning and harrowing crime thriller featuring a brilliant and tortured FBI agent, the Faith Bold series is a riveting mystery, packed with non-stop action, suspense, twists and turns, revelations, and driven by a breakneck pace that will keep you flipping pages late into the night. Fans of Rachel Caine, Teresa Driscoll and Robert Dugoni are sure to fall in love.
Future books in the series are also available!
“An edge of your seat thriller in a new series that keeps you turning pages! ...So many twists, turns and red herrings… I can't wait to see what happens next.”
—Reader review (Her Last Wish)
⭐⭐⭐⭐⭐
“A strong, complex story about two FBI agents trying to stop a serial killer. If you want an author to capture your attention and have you guessing, yet trying to put the pieces together, Pierce is your author!”
—Reader review (Her Last Wish)
⭐⭐⭐⭐⭐
“A typical Blake Pierce twisting, turning, roller coaster ride suspense thriller. Will have you turning the pages to the last sentence of the last chapter!!!”
—Reader review (City of Prey)
⭐⭐⭐⭐⭐
“Right from the start we have an unusual protagonist that I haven't seen done in this genre before. The action is nonstop… A very atmospheric novel that will keep you turning pages well into the wee hours.”
—Reader review (City of Prey)
⭐⭐⭐⭐⭐
“Everything that I look for in a book… a great plot, interesting characters, and grabs your interest right away. The book moves along at a breakneck pace and stays that way until the end. Now on go I to book two!”
—Reader review (Girl, Alone)
⭐⭐⭐⭐⭐
“Exciting, heart pounding, edge of your seat book… a must read for mystery and suspense readers!”
—Reader review (Girl, Alone)
⭐⭐⭐⭐⭐
198 pages, Kindle Edition
Published January 23, 2026
About the author
Blake Pierce
1,091 books6,017 followersBlake Pierce is author of the bestselling RILEY PAGE mystery series, which includes seven books (and counting). Blake Pierce is also the author of the MACKENZIE WHITE mystery series, comprising four books (and counting); of the AVERY BLACK mystery series, comprising four books (and counting); and of the new KERI LOCKE mystery series.
An avid reader and lifelong fan of the mystery and thriller genres, Blake loves to hear from you, so please feel free to visit www.blakepierceauthor.com to learn more and stay in touch.
An avid reader and lifelong fan of the mystery and thriller genres, Blake loves to hear from you, so please feel free to visit www.blakepierceauthor.com to learn more and stay in touch.
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Displaying 1 of 1 review
January 30, 2026
Faith is now in a position where she can choose the cases she wants to work and has more time for her personal life. She's also enjoying the work with the K9 unit and is afraid of what might happen to Turk as he's getting old to be a working dog. In So Ruthless she'll chase a killer who is targetting those involved in the denial of supporting animals for those in need. At the same time, her husband, David, is struggling to decide what to do about the K9 belonging to the Army and the requests he received.
I thank Ms. Pierce for this ARC.
I thank Ms. Pierce for this ARC.
Displaying 1 of 1 review