97 books • 21 series
Murderous Maths Series
Agatha Parrot and the Heart of Mud (Agatha Parrot)
Agatha Parrot and the Zombie Bird (Agatha Parrot)
Agatha Parrot and the Mushroom Boy (Agatha Parrot)
Murderous Maths Collection (savage Shapes, the Phantom X, the Perfect Sausage, the Key to the Universe, Guaranteed to Mash Your Mind, More...)
Everyday Math Tricks for Grown-Ups
Agatha Parrot and the Floating Head (Agatha Parrot)
Isaac Newton and His Falling Apple (Horribly Famous)
Everyday Maths for Grown-ups
Easy Questions, Evil Answers (Murderous Maths)
Murderous Maths of Everything (Murderous Maths)
Murderous Maths: Secret Life of Codes (Murderous Maths)
The Perfect Sausage and Other Fundamental Formulas (Murderous Maths)
Murderous Maths:Friendish Angeltron (NE) (Murderous Maths)
Key To The Universe (Murderous Maths)
Phantom X (Murderous Maths)
Totally: Gobsmaking Galaxy (Totally)
Urgum and the Googoobah (Urgum)
Pantology
Urgum and the Seat of Flames (Urgum)
Pantsacadabra
Cracking Codes Action Pack (Murderous Maths S.)
Murderous Maths: Codes (Murderous Maths)
Urgum the Axeman (Urgum)