Giving my girlfriend a running commentary on the book:
"Jaguar tried to escape the clutches of the Cheka by going home to Brazil, but now they've manipulated him into leading a Brazilian Revolution."
"I hate it when that happens."
...
"Now he's escaped from the revolutionaries with the aid of an aged Scottish family retainer and his armoured train."
"Yay!"
"But the revolutionaries have caught up with him and are making them use the armoured train for the Revolution."
"Oh my, what a beamer."
"Also, Jaguar's American anarchist girlfriend doesn't like it when the aged Scottish retainer calls him 'laddie'."
"That's just the sort of thing aged Scottish retainers do, she really ought to know that."
...
"You know, there's a trick to writing books like this. You can't just jump right in with the armoured trains or the illegal boxing matches on oil rigs, you have to ramp up the improbability gradually."
"Yes, by the time he runs across Mongolia, you want the reader to think 'that's believable for the character."
"Running across vast unforgiving wildernesses seems to be Jaguar's superpower."
...
"Look at this, it's a book by the same author."
"That looks very much like a romp. Possibly even a caper."