In this action-packed mystery thriller by #1 bestselling author Blake Pierce, Cora Shields, 30, former Navy Seal turned FBI Special Agent, will stop at nothing to catch a killer— but she is stunned, after bending one rule too many, to find herself fired. When a former military friend needs her to help find her missing daughter, Cora must work outside the law, hunting down diabolical killers on her own—even if it means vigilante justice.

Will Cora save the victim in time and give her life a new purpose? Or will she end up descending into a deeper hole than she ever imagined?

“A masterpiece of thriller and mystery.”

—Books and Movie Reviews, Roberto Mattos (re Once Gone)

⭐⭐⭐⭐⭐

UNDONE (A Cora Shields Suspense Thriller—Book 1) is the debut novel in a new series by #1 bestselling mystery and suspense author Blake Pierce.

On the outside, Cora Shields is a total badass. A Navy SEAL veteran and a top agent in the FBI’s Behavioral Analysis Unit, Cora has a reputation for doing whatever it takes to catch a killer. What no one knows, though, is that she’s a wreck on the inside, addicted to painkillers and deeply depressed. When Cora is fired, she is at loose ends—until she learns that an old friend’s daughter has disappeared.

Hesitant at first, Cora decides to take the case on as a vigilante—and her world soon explodes into action.

The conspiracy she uncovers goes deeper than anyone could have imagined, leading her on a wild cross-state chase to save the missing girl before time runs out.

Can Cora handle all this alone, all while keeping her own demons at bay?

Can she catch a killer, and save the girl before it’s too late?

A page-turning and harrowing crime thriller featuring a brilliant and tortured vigilante, the CORA SHIELDS 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.

Future books in the series are now 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)

⭐⭐⭐⭐⭐