Christel Gonnard 
Planet of the Night Globes [PDF ebook] 
Book 6

When the Little Prince arrives on planet Voltaine, the nights are as bright as day, with rings of streetlamps flooding the city. These are supposed to protect the inhabitants from the Globes, strange creatures that only come out at after dark and, it’s said, can to turn people to stone. But is the real problem the streetlamp seller? He’s firing up the fear of the people . . . but to what end?