
Murderous Maths
$4.59 - $4.79

Murderous Maths: The Essential Arithmetricks
$6.19 - $7.49

Everyday Math Tricks for Grown-Ups: Shortcuts and Simple Solutions for the Not-So-Math Minded
$5.59 - $6.69

The Runaway Pea
$11.19 - $15.83

Do You Feel Lucky? The Secrets of Probability (Murderous Maths)
$5.99 - $6.39

Desperate Measures
$5.99 - $6.89

Numbers, the Key to the Universe
$5.39 - $6.19

The Phantom X
$5.79 - $6.79

The Perfect Sausage and Other Fundamental Formulas (Murderous Maths)
$5.69 - $5.89

Vicious Circles and Other Savage Shapes
$5.69 - $5.89

The Runaway Pea Washed Away
$7.59 - $14.87

More Murderous Maths
$7.59 - $10.79

Isaac Newton and His Apple
$6.69 - $6.99

Guaranteed to Mash Your Mind
$5.39 - $6.39

Easy Questions, Evil Answers
$5.49

Codes: How to Make Them and Break Them!
$5.29 - $6.09

Attack of Killer Puzzles
$4.39 - $7.29

Mega Math Maze: A Multiplication Adventure
$8.69 - $9.99

Everyday Maths for Grown-Ups: Getting to Grips with the Basics
$10.39 - $12.69

Harry Houdini (The First Names Series)
$4.99 - $9.36

The Runaway Pea Left Behind
$14.83

Agatha Parrot and the Odd Street School Ghost
$4.59 - $10.02

The Gobsmacking Galaxy
$5.59 - $5.79

Brief History of Pants
$6.79 - $7.79

The Phantom of the Opera: Play (Acting Edition)
$22.99

The Secrets of Sums (Murderous Maths)
$29.29

Agatha Parrot and the Thirteenth Chicken
$10.59 - $13.09

Titus O'Skinty's Gruesome Game Show
$11.19

The Island of Tomorrow (Mission Math)
$28.09

Find the Phantom of Ghastly Castle (Puzzle Books S.)
$16.79