Reeling from a series of painful losses, CIA agent Kate Ross finds her faith coming into question. She gets her chance at redemption in the form of managing a new unit of moms trained as spies — but as secrets emerge, she’ll need to reconnect with her guiding light or risk losing everything… If you like undeniable chemistry, page-turning tension, and Christian values in action, then you’ll love The Untapped Source series by Amy Martinsen

The Perfect Spy: A Clean Romantic Suspense (An Untapped Source Book 1)
by Amy Martinsen
4.6 Stars (481 Reviews)
Genre: Mystery & Thriller | Religion & Spirituality

She’s got the best undercover crew. But will a sinister secret undo them?
Kate Ross has lost way too much in the last six months. With her mother’s death from breast cancer, an agent she handled killed on the job, and her career in jeopardy, the beleaguered CIA officer’s faith in God seems like another casualty. So she’s relieved to be offered a shot at redemption by managing an innovative team of “mom spies”… until they saddle her with a more experienced man as a babysitter.

Battling self-doubt and a loss of confidence in her espionage skills, Kate directs a smoothly successful first mission for the unit. But just as she opens up to her kind and encouraging supervisor, she suspects he’s withholding key information when the subject of their next assignment is his ex-wife. And the only solution to her predicament may be prayers she has no expectation will be answered.

Can Kate find the guiding light to solve the case before her personal crisis threatens national security?

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Hold Your Breath: A Clean Romantic Suspense (An Untapped Source Book 2)
by Amy Martinsen
4.7 Stars (363 Reviews)
Genre: Mystery & Thriller | Religion & Spirituality

A notorious Russian terrorist is hunting Kate.
Aleksandr Zhuk is a sociopath who has evaded the CIA for decades. Kate humiliated him and now he wants revenge. And will stop at nothing to get it.
Kate, John, and the U-Tap team of mom-spies must stop this ruthless killer before he releases a deadly chemical weapon on US soil.
Can Kate’s faith in God give her the strength to face this madman?
Or will hundreds die with just one breath?

Hold Your Breath is the riveting second book in Amy Martinsen’s romantic suspense series, An Untapped Source. If you like undeniable chemistry, page-turning tension, and Christian values in action, then you’ll love this thrilling second installment.

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Loose Ends: A Clean Romantic Suspense (An Untapped Source Book 3)
by Amy Martinsen
4.7 Stars (167 Reviews)
Genre: Mystery & Thriller | Religion & Spirituality

Who killed Nahla?
This question haunts CIA Officer Kate Ross.
Even after collecting a box full of evidence in a secret, obsessive manhunt, Kate isn’t able to discover who killed the most valuable agent she’s ever handled.
When the box goes missing, Kate must go against all her spy training to find Nahla’s killer, propelling John and the U-Tap team on a harrowing race against time.
Will Kate find the killer, or will she suffer the same fate as Nahla?

Loose Ends is the gripping third book in Amy Martinsen’s romantic suspense series, An Untapped Source. If you like undeniable chemistry, page-turning tension, and Christian values in action, then you’ll love this thrilling third installment.

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The Pitch: A Clean Romantic Suspense (An Untapped Source Book 4)
by Amy Martinsen
4.7 Stars (40 Reviews)
Genre: Mystery & Thriller | Religion & Spirituality

Kate doesn’t know if the sound is human. What she does know is that she’ll never forget it.

When Kate discovers her neighbor — the wife of a Pentagon employee — is a Russian spy, Kate must make the hard decision of becoming a double agent to catch her.

Plunged into the deepest levels of espionage, can Kate convince the Russians she’s willing to betray her country?

If she can’t, the Russian spy will go dark, never to be found… but not before she eliminates Kate.

The Pitch is book four in the suspense series, An Untapped Source. If you like undeniable chemistry, page-turning tension, and Christian values in action, then you’ll love Amy Martinsen’s fast-paced novel.

Buy The Pitch for an intense ride you won’t want to end!

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