The Author

The Mind Behind the Casebooks

Ivy X. Locke creates immersive mystery puzzle books that make logical thinking feel exciting. Each case invites readers to observe more carefully, reason step by step, and grow more confident in their own deductions.

Macro chiaroscuro shot of a fountain pen resting on aged, ink-stained parchment, a brass inkwell nearby, soft candlelight casting long dramatic shadows, warm gold and navy tones.
Macro chiaroscuro shot of a fountain pen resting on aged, ink-stained parchment, a brass inkwell nearby, soft candlelight casting long dramatic shadows, warm gold and navy tones.
The Craft

How Each Puzzle Book Is Built

Every Ivy X. Locke casebook begins with one carefully designed mystery. The suspects, evidence, clues, and final solution are developed together so that every detail has a purpose.

Each case is tested to make sure the trail is clear, the logic is consistent, and one answer fits every clue. The challenge should feel intriguing—not confusing—and satisfying when the truth finally becomes clear.

The Philosophy

The truth is rarely hidden from sight. More often, it is hidden by the way we choose to look.

Ivy X. Locke