Angel's Bone is an opera by composer Du Yun and librettist Royce Vavrek in one act that follows the plight of two angels discovered on earth who are forced into spiritual and sexual slavery at the hands of a financially troubled couple. The work is a contemporary parable[1] that explores the dark effects behind modern-day slavery, and human trafficking and probes the psyche of traffickers.[2] Du Yun draws her inspiration from a range of musical genres – from classical to punk to the cabaret.[3]