An 11-year-old girl was admitted with multiple injuries sustained during a 1-year servitude of domestic labour. She was acquired from her parents in Mainland China by a relative in Hong Kong. The child's parents received a sum of money that the child had to repay with work. Her hardship was characterised by long hours of incessant labour and physical torture when she failed to meet the demands of her mistress or her mistress' children. This case resembles Mui Tsai, a form of child slavery and exploitative domestic labour that was rife in Hong Kong a century ago, and illustrates the new challenges to child rights and protection consequent to the increasing social and economic integration between the Hong Kong Special Administrative Region and Mainland China.