Tom Clancy's Splinter Cell: Firewall Novel (PB)

Veteran Fourth Echelon agent Sam Fisher has a new mission recruiting and
training the next generation of Splinter Cell operatives for the NSA’s covert
action division, including his own daughter Sarah. But when a lethal assassin
from Fisher’s past returns from the dead on a mission of murder, father and
daughter are thrust into a race against time as a sinister threat to global
security is revealed. A dangerous cyberwarfare technology known as
Gordian Sword – capable of crashing airliners, destroying computer
networks and plunging entire cities into darkness – is being auctioned off
to whichever rogue state makes the highest bid. Sam and Sarah must call
on their very singular set of skills to neutralize Gordian Sword and stop the
weapon falling into the wrong hands – at any cost...