The tower is the high skeletal framework above a power station under construction. Burnett and Crowe go back over the private airfield and the ashes of the plane crash that killed Burnett's wife.
The Knave is an accountant in Locarno, protected by bodyguards and an electrified fence - the architect of embezzlement. And some of it is Burnett's money.
The chariot drives across the coast of Scotland where North Sea oil and the land where it will devour conflict in a struggle for the world's highest stakes. (sic) This is where one of Burnett's ex-partners realised ambition when he bought a Highland estate and its lairdship.
That's what they called Lew Burnett when he ran a contract in a totalitarian police state. If he goes back to find answers he will find himself accessory to corruption, under sentence of death, and will be chained to a prison wall.