The Fiendish Angletron (Murderous Maths)

Is maths making you miserable? Are you traumatised by triangles and anxious about angles? Fear not: this book will help you solve the most testing of trigonomogeometric tasks. But beware - Professor Fiendish is planning his most evil scheme yet! To defeat him you'll need to push your calculator to its limit and use those mysterious buttons you've always been afraid to touch. Also here to help are the strangely familiar superheroes Supersin, Cosgirl and Tandog. Meanwhile Blade and the gang attempt to solve the mystery of Bluetooth's Buried Bullion using breadsicks, a mustard jar, and a coffee cup...