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2015 Christy Award finalist!
2014 winner of a Genre Fiction award from Library Journal!
After a whirlwind romance, Taryn Young is preparing to board a plane at Houston International Airport, bound for a dream honeymoon, when a bomb decimates the terminal. Injured but still alive, she awakens to discover her husband is missing and they’re both considered prime suspects in the attack. Further, the FBI is convinced her husband isn’t who he appears to be.

Agent Grayson Hall’s number-one priority is to catch those responsible for the day’s act of terror. All evidence is pointing to Taryn and her new husband. But his instinct tells him her pleas of innocence are genuine. Is her naiveté just for show, or could she truly be another victim of a master scheme, possibly linked to the software she recently developed for her company?

With both their lives and reputations on the line, and the media outcry for justice increasing with each passing minute, Taryn and Grayson have no choice but to trust one another . . . and pray they can uncover the truth before they become two more casualties.

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Firewall focuses on the work of world-class software developer, Taryn Young, who leads her company’s efforts on a major government contract for America’s energy pipelines. Following a catastrophic bombing, Taryn realizes her new husband is missing and she is the prime suspect of a major terror attack. Together with FBI Agent Grayson Hall and his uncle, a retired FBI agent, Taryn evades capture in the hopes of proving her innocence and discovering the real cause of the bombing. With layers of intrigue and bureaucracy, they eventually realize just how close they have been to the terrorists all along. Ms. Mills creates a fast-paced story reminiscent of technology-driven suspense films. As an author with perhaps more experience writing more casual romance (at least for her books that I’ve read previously), Ms. Mills’ number one priority appears to be driving the story forward with exceptional urgency. Taking place over the course of only a few days, Firewall depends on a number of convenient explanations and happenstance scenarios that create a generally-unconvincing story. Overall, I thought that Firewall made for an interesting one-time read from the library. Thanks! Brittany at

“By all rights, she should have been killed today. And if her fears were valid that his abandoning her at the airport was all about the Nehemiah Project, she could be another body at the morgue. She shook her head, wanting to believe her injuries had taken her on a hallucinatory trip,” Diann Mills writes in her suspense novel, "Firewall." At four hundred and ten pages, this paperback targets those interested in current-day Christian fiction with intrigue and romance. With some slang, instances of violence, and light romance, the story would be apropos for mature teenagers and adults. At the end of the book, there are author notes and ten discussion questions. In this fast-moving tome, Taryn Young has had all her dreams come true, or so she thinks. A top software developer of Gated Labs Technology designing the Nehemiah Project with the U.S. Congress’s support, she heads to the Houston airport with her newly married husband who has swept her off her feet when they met only three months ago. It is not all as it seems, especially when a bomb goes off in the airport terminal killing almost fifty people while she is in the restroom. Unable to locate her husband, the injured woman with a high IQ finds herself in a nearby hospital recuperating from injuries and being questioned by the FBI of her participation in a terrorism plot. With only FBI Agent Grayson Hall’s belief in her innocence, the two begin a back-and-forth relationship of trust and faith as they try to find the true identity of her supposed husband and if the terrorists were after her knowledge of the Nehemiah Project. Through multiple threats and encounters with those who want to get information, she must rely on God being in control and knowing the outcome of her life. As she starts to depend and confide in Grayson, Taryn becomes more entangled in a rogue group of dangerous people seeking to kill her and others for more than financial gain. Battered and broken, Taryn encounters more injuries than conceivable in several days as Grayson tries to connect the dots to locate the mastermind of the bombing. Readers that like a female protagonist caught up in a suspenseful mystery with twists may find this read engaging. Thanks to Tyndale House Publishers for furnishing a complimentary book in exchange for a review based on the reader’s honest opinion.

I received a copy of this book in exchange for an honest review. This book was a very quick, enthralling and suspenseful read. The author did a very good job of getting the reader emotionally involved in the characters. Taryn goes from a head-over-heels newlywed, to a terrorist suspect within the first few chapters of the book. I loved watching her evolve from a science-only, geeky programmer to a tough, faith-filled woman intent on taking down the bad guys and proving her innocence. Grayson goes from being a relative newbie FBI agent to a more seasoned, yet sensitive agent.It was so good not to see him lose his faith in humanity and God. The book takes place in Houston of which I am intimately familiar with, having lived there for 9 months. It was good to be able to really see the airport as I remember it, and remember the bumper to bumper traffic every single morning. The author brought the city to life around me as I read.

Firewall by DiAnn Mills was not an enjoyable book for me. I stopped after reading 20% of the book. I didn't like the high-paced stress, lies, & distrust. I didn't like that a character essential cursed, even if it was "bleeped" out. I didn't really see God in the first 20% of this book.

Firewall by DiAnn Mills was an suspenseful and intriguing novel that kept me glued to the pages. The plot line was fast paced and well written, and it included the interesting idea of how technology could be (and probably often is) used for both terrorism and to further a person's greed. The storyline included several unexpected twists and turns, including a very huge plot twist in the first few chapters, and I was left not knowing who to trust and who was behind the attacks until the very end. I was shocked to discover who the real killer was and why they were motivated to kill and blow up so many civilians. The narration of the novel was very interesting and continued the suspense of the story. Most of the chapters were in third person narration but still told from either Taryn Young or Grayson Hall's perspective. However, a few chapters were in first person narration from the perspective of an unknown person who was involved in organizing much of the plot surrounding Nehemiah. The characters in Firewall were interesting and fairly well developed. Many of the characters had secrets that threatened the United States' security and there were so many unknowns that even the reader was not sure which characters were trustworthy. I really liked Grayson and his uncle Joe; they worked well together and were dedicated to protecting Taryn. I also liked Taryn's character. She had her own set of flaws and struggles, but I enjoyed seeing how she began to turn to God again for stability and to trust him again. I cannot say too much about Taryn and Grayson, but I liked how they interacted with one another, and I really enjoyed the epilogue. There were a couple things I thought seemed a little unrealistic about their interactions, but I cannot say more without giving away a major plot twist. Overall, I enjoyed Firewall, and I look forward to reading more of DiAnn Mills' novels. I received this novel in exchange for an honest review.