* The Ghost of the Mountains: This is Tierney's debut novel, a historical fiction set in the American West during the gold rush. It tells the story of a young woman who sets out to find her missing father, facing danger and adventure along the way.
* The Devil's Paintbrush: A gothic historical novel set in the late 1800s in the American West, where a young woman confronts a mysterious and powerful force that threatens her family and community.
* The Woman in the Library: A suspenseful thriller about a woman who is drawn into a mystery surrounding a missing librarian, uncovering secrets and dangers that threaten her own life.
* The House on the Cliff: This is a contemporary novel about a woman who inherits a mysterious house on a cliff, leading her to uncover a family secret and a long-lost love.
Additionally, Kathryn E. Tierney has also written numerous short stories, which have been published in various literary magazines and anthologies.
Her books have received critical acclaim and are known for their compelling characters, atmospheric settings, and suspenseful plots. She is considered a talented and versatile writer who has established a solid reputation in the literary world.