THE WARRIOR WITHIN by Angus McIntyre

A new review over at Tor.com:

On a backwater planet whose inhabitants live parochial lives surrounded by the artefacts and wreckage of a long-vanished civilisation, a somewhat-disinterested religious autocracy dispenses subsistence wages and food for devotion and prayer—or salvaged artefacts—at their technological Temples. The head of each Temple is called the Muljaddy, and they’re all part of one single family, and the Temples—which are sometimes moved—are strung out along the length of a Road through a wasteland landscape, around which towns grow and falter, and along which people occasionally move.