Her co-author, David Stallworth, once encountered two men at his church in Beaufort, S.C., who the preacher later determined to be angels.
"He described the men as scruffy, with a beard and wrinkled suit," Brady said. "They stood out."
After church, Brady said Stallworth "approached the men to welcome them and they began to ask questions that he could not answer." He simply stated, "Things were different back then," to give them an answer.
The preacher also took notice of the men and hurried to reach them before they left church, but the men had disappeared, Brady said.
The preacher believed they were angels, she said.
This encounter led Stallworth on a six-year research project to find answers to the questions the men had asked, which focused on God and creation.
That quest later led him to write a book with Brady.
After working as a sales and marketing executive for an industrial supply distributor for 20 years, Brady bought North Augusta's Heavenly Resources Christian Bookstore in 2000.
Her bookstore, located in Martintown Plaza, is where she first met Stallworth.
"He just ended up in the store," she said. "I believe the Lord brought us together."
After sharing his research with Brady and giving lectures on Tuesday evenings for two years at her bookstore, Brady and Stallworth decided to start the book in 2003.
Her book was published on June 6, 2006, or 6/6/06.
When asked if the book was finished on "666" as a deliberate good versus evil battle, Brady noted the date was just a coincidence.
"(I) believe the purpose of the book is to help readers build a rock solid faith," she said. "(It) frees people."
Personally, she feels it has a "healing message" and the information in the book has helped her to establish a deeper faith.
"I had been troubled in science in school. I thought these people believed what they were telling me," she said, speaking of the evolution theory. "It was conflicting so hard it left wounds.
"In writing this book, it has developed the purpose of my life."
While her book is categorized as historical fiction, Brady said it is historically and scientifically accurate.
Brady said after reading the book, it is hard to deny there is a creator as it "shows evolution, has an encounter with the creator and gives the knowledge of truth."
A graduate of the University of South Carolina in Columbia with a degree in journalism, Brady used her knowledge to "connect all the bones, flesh it out, bring characters to life and add literary contribution to the book."
Brady currently is working to finish two novels, which she said she are about seven months from completion.
Now that she does not maintain the bookstore, except online, she writes six to eight hours a day.
In her spare time, Brady enjoys painting.
She has run two marathons, enjoys to "read good fiction with purpose and truth," enjoys the outdoors and seeing "all God's colors," enjoys playing golf and one day wants to travel "to the Holy Land (Israel), Australia, South Africa, Alaska," and back to Hawaii, where she was married.
Brady recently turned 50 and said it can be surprising to see what new things come about at the different stages of life, like her desire to start painting in 2005.
"It is so fulfilling to see what God's pulled out of me," she said.