Three action novels operating in the same shadowy moral territory. Swallow's Marc Dane is fighting a digital war against a group that doesn't officially exist. Baldacci's Amos Decker, armed with a perfect and unsparing memory, lands in a boomtown where the money has attracted something far worse than greed. And Bourne, as ever, is pulling at a thread that leads somewhere nobody wants him to go.
James Swallow, Ghost - Ex-MI6 operative Marc Dane battles a faceless cyber-criminal network threatening world war, while a traitor inside Rubicon closes in.
David Baldacci, Walk the Wire -Amos Decker's perfect memory takes on a North Dakota boomtown murder and a community hiding dangerous secrets.
Robert Ludlum & Eric Van Lustbader, The Bourne Imperative - Bourne rescues a drowning man from a Swedish lake, a man sent there to kill him.
Ian Rankin is always a good read but it is interesting to have one of his other series which shows a different style and for me the best read in the selection.