The dark web is waiting for you ... Get ready to immerse yourself in the internet's darkest corners and stop the hackers in their tracks. 100 puzzles to solve by million-copy bestselling author Dr Gareth Moore.

Can you fix the malware the hacker has embedded into your system before the clock runs down? Do you have the skills to stop them in their tracks before they've stolen your data? Are you ready to put your white-hat hacker skills to good use by thwarting criminal masterminds?

Written by the internationally best-selling Dr Gareth Moore, this is the ultimate puzzle book for wannabe hackers, full of codes, ciphers and fiendish conundrums to crack.