Shannon O'Toole
Books by Shannon O'Toole
The Election Calculation
An Unsolved Proof
The Math Kids (Book 9)
An Artificial Test
The Math Kids (Book 8)
A Knotty Problem
The Math Kids (Book 7)
The Triangle Secret
The Math Kids (Book 6)
An Incorrect Solution
The Math Kids (Book 5)
An Encrypted Clue
The Math Kids (Book 4)
An Unusual Pattern
The Math Kids (Book 3)
A Sequence of Events
The Math Kids (Book 2)
The Prime-Time Burglars
The Math Kids (Book 1)