"As the reputation of the books grew, I began to be granted, however grudgingly, more input on the cover art. From that period, 1991, Margaret Chodos-Irvine’s four beautiful jacket paintings for the first four books (Atheneum), and the gorgeous metallic covers of the last two (Harcourt). These last were thanks to my editor , who fought long and fiercely for me. Years later, Michael let me see the first draft the cover department sent him: a fat green dragon, clearly modelled from one of those cute wind-up dinosaurs that spit sparks, sitting up like a dog begging, in a cloud of pink steam. St. Michael fought that dragon and defeated it, but it took him months."