Father-to-be Damian Vanner said it was "a major crisis".

There’s a 1990s club-music playlist, dark-green walls, a single hanging lightbulb and a changing array of objects, like a deer horn bedazzled with pearls and crystals by artist Olivia Vanner.

The owner of Vanner Caravan, Camping and Holiday Cottages in Dolgellau, Gwynedd, said: "This year is a perfect storm. There's much more competition as the market is saturated."

The first part is a novella titled “Bonds,” presented as the work by a now forgotten writer in the 1930s named Harold Vanner.

Diaz, writing as Vanner, spins the legend of an icy, isolated young man who quickly masters the levers of finance to transform his “respectable inheritance” into an unimaginably large estate.