The planet of Ahm has been silently changing. Its outer protective shield has thinned and people have been none the wiser. Until now. Merouac, head metalsmith on the transcontinental railroad, has more important things to be worrying about. There's the railroad, for a start. And then there's Evra; his young niece, who has come into his care after the death of his twin sister Malaena. An eternal bachelor, Merouac has no idea to take care of such...