Codes: How to make them and break them
Kjartan Poskitt, author of the riotously funny novel Urgum the Axeman (have you checked it out yet?), spills the beans on everything you could need to know about the cryptic world of codes. Are you intrigued by the enigma machine? How codes were written in Roman times? And, best if all, how to encode and decode messages of your own!

ISBN: 978 0439 94328 4. Paperback. £4.99

Murderous Maths: Professor Fiendish’s Book of Brain-benders
Pit your wits against everyone’s favourite arch enemy, Professor Fiendish, who now has a Murderous Maths book all to himself. You can try your hand at the Darts of Doom or play a game of Pass the Poison, before facing the ultimate horror, the bottom of Fiendish’s fridge!

ISBN: 9780439950008. Paperback. £4.99

Murderous Maths: Kakuro and other fiendish number puzzles
More fiendish number puzzles from the co-author of Murderous Maths: Su Doku.

ISBN: 9780439951647. Paperback. £3.99

Murderous Maths: Su Doku
These Japanese number puzzles are the 'in thing' with adults at the moment and now younger readers can get their hands on this Su Doku books which contains 100 fiendish Su Doku puzzles and an introduction written by Murderous Maths author, Kjartan Poskitt.

Find out how Pongo McWhiffy makes a perfect fried egg, how to get your fair share of the gangsters' leftover pizza and what makes money really interesting. Meet the Gollarks' evil allies as they prepare for another invasion and join the Pure Mathematicians in a high-speed car chase. Can the Mathsmobile take the pace? Meanwhile, back at the Last Chance Saloon, Brett Shuffler brings the house down and Riverboat Lil meets her match.

ISBN: 9780439959018. Paperback. £4.99