Christopher Banks, an English boy born in early-twentieth-century Shanghai, is orphaned at age nine when his mother and father both vanish under suspicious circumstances. Sent to live in England, he grows up to become a renowned detective and, more than twenty years later, returns to Shanghai, where the Sino-Japanese War is raging, to solve the mystery of the disappearances. Moving between inter-war London and Shanghai, When We Were Orphans is a remarkable story of memory, intrigue and the need to return.