"As Fujimaru dives deeper into investigating the enigmatic "Bloody Monday" data, the stakes are raised when his sister is abducted. The terrorists demand Falcon complete a hacking job for them in exchange for his sister. Time is short as his sister is in urgent need of dialysis. Can Fujimaru break free of the terrorists' insidious manipulation and find a way to save his sister without helping the terrorists further their agenda?"--P.  of cover.