Cipher

When the cryptic Parallax puzzle appears online, it quickly becomes the world's most talked-about conundrum. A complex, multi-level cipher, it has the brightest minds on the planet baffled: but who created it, and why? Sixteen-year-old Sabrina is obsessed with cracking it - but when she does, she discovers it isn't a game. Caught up in a sinister global conspiracy, she becomes involved with a mysterious international task force, and is recruited to hunt down a serial killer who may not be from this world. Joined by geeky New Yorker Benny, the second solver of the Parallax, Sabrina embarks on a dangerous journey that turns her world upside down and sees her questioning her past, her parentage, and everything she's ever known...NB: Contains very strong language and violent scenes