Helen Oyeyemi's command of magical realism is practically mind altering in her unforgettable seventh novel. Under a somewhat twee pretense, freshly committed partners Otto and Xavier Shin, accompanied by their faithful mongoose, travel by boutique train carriage for their "non-honeymoon." But from there, Peaces sprawls into astonishing, and even frightful, territories of the interior, more so than new horizons abroad. Oyeyemi (Boy, Snow, Bird; Gingerbread) may appear to direct this beguiling novel off the rails at times, but its manic twists never spin out. They instead serve to reorient the gravity of the situation. The Shins' getaway becomes hitched to the rising stakes surrounding a sizable inheritance promised to the carriage owner, Ava, by a former employer. The catch is that she must prove her sanity on the final day of a train ride riddled with apparitions: phantom whistling, disappearing mongoose catchers, perplexing incidents of "bespoke vandalism" and mystifying "canvases... bathed in white." Peaces is a superbly fun Rorschach test of staggering creativity. --Dave Wheeler, associate editor, Shelf Awareness