Books by Kristina Fox

Book cover of 'Time Under Tension' by Kristina Fox, a suspenseful fitness mystery.

Time Under Tension: Book 1 in the Kelsey James series

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Available on Amazon.com, BarnesandNoble.com, bookshop.org, and books-a-million.com. Available in ebook, paperback, and hardcover.

Free on KindleUnlimited.

Click to Buy Time Under Tension

A fitness mystery book cover featuring a runner and gym imagery.

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Available on Amazon.com.

Click to Buy Double Progression-Paperback

Double Progression: Book 2 in the Kelsey James Fitness Mystery series-eBook

Double Progression: Book 2 in the Kelsey James Fitness Mystery series- Paperback

Available on Amazon.com

Free on KindleUnlimited

Click to Buy Double Progression-ebook

Candy & Cardio: A Kelsey James Novella

Available on Amazon.

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Silent Harvest: A Christmas in the E.R. Thriller

Silent Harvest: A Christmas in the E.R. Thriller

A short novella, written as a prequel to What the Neighborhood Knows (Coming in 2026).

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Click here to purchase Silent Harvest