While recovering, Kamoie felt a creative urge, taking guitar lessons, changing her taste in music, and writing a novel inspired by the Twilight series in 11 weeks.

[7] Success came relatively quickly, and in 2012 she sold her "Hard Ink" series, featuring a group of ex-military conducting covert operations out of a tattoo parlor, to Avon, subsidiary of HarperCollins, for six figures.

In 2020, she sold her first solo novel of historical fiction, Churchill's Spymistress, about Special Operations Executive intelligence officer Vera Atkins and her first two female spies to parachute into occupied France, to Berkley, a subsidiary of Penguin Random House, in a six-figure deal.

[13] In 2021, she and co-author Stephanie Dray sold two novels to William Morrow in a seven-figure deal, including Founding Mother: The Story of Abigail Adams.

[14] In 2021, Kamoie also authored a tour guide for visitors to the Thomas Jefferson Memorial about the creation of the Declaration of Independence entitled To Begin the World Again on the BARDEUM mobile app.