Dan Brown might like this campaign.

His hero, Robert Langdon, would take only seconds to spot those caravans subtly hidden in the back of some of Europe’s most famous paintings.

And, then, in moment of stunning, almost superhuman, insight, connect them to a secret society of extreme-campers who, since the very beginning of time, had been planning nothing less than world domination.

Sorry to disappoint you, Dan.

There is no conspiracy.

These are just some rather nice print ads for Elddis that went in specialist press and helped them flog a few caravans.