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An Unusual Pattern
Other Books in This Series
An Encrypted Clue
2021
An Incorrect Solution
2021
The Triangle Secret
2022
A Knotty Problem
2022
An Artificial Test
2023
An Unsolved Proof
2024
The Election Calculation
2024
The Missing Cache
2025
The Final Challenge
2026
The Prime-Time Burglars
2018
A Sequence of Events
2019