Book excerpt: Obsessed with martial arts and ghost stories, Ruby is part of a gang of Chinese and ex-pat children who hide out in ruined White Cloud Temple. But the world of Shanghai in the late 1920s is driven with danger: disease, crime, espionage and revolution are sweeping the streets. Faced with a series of local hauntings, and armed with The Almanac of Distant Realms, Ruby forms the Shanghai Ghost Club to hunt down restless spirits. When best friend Faye is kidnapped by the Green Hand, Ruby must trust a mysterious stranger in order to save her friends, and her own life. The secrets that Ruby's father and friends have kept from her are coming back to haunt them all.