Basilisk

A tense horror-thriller novel of fiendish puzzles, mounting paranoia and unanswerable mysteries, centred on an enigmatic hacker, a deadly online game and a cyber weapon that drives people insane. It's perfect for readers who simply have to know the answer.

Alex Webster is an ethical hacker who prefers questions to answers, so when she and her colleague Jay Morton stumble across a mysterious game built by a shadowy figure called The Helmsman, they're instantly hooked. As they crack ever stranger puzzles and uncover his deranged manifesto, a sinister group closes in, determined to stop them reaching the Basilisk, a cognitive weapon that unravels the mind of anyone who understands it. When Jay vanishes, Alex must solve the final puzzle alone while glitching, smiling figures stalk her every move.