Inverted world

Probably the best received of Priest's pure SF work was Inverted World, a novel set on a bizarre planet that can be best described as an inside-out sphere, its equator & poles stretching out to infinity. The protagonist Helward Mann literally sees this for himself in a narrative spike in the middle of the book, after which the plot tails-off to a typically inconclusive conclusion. The novel's structure thereby mirrors the shape of the planet. This fine attention to structure is one of his hallmarks & can be seen in all his later novels.