LONDON, ENGLAND - Penny was almost 29 when she was trafficked from Rwanda to the UK, tricked into believing she could start a new life.
Instead, she ended up trapped in a small flat in south-west London.
She had unwittingly stepped into a trap laid by a trafficker, becoming a commodity in what campaigners say is the world's fastest growing illegal trade - in people.
Yet when Penny agreed to meet the agent, introduced to her by a friend, she was unaware that human trafficking even existed.
"I didn't think about the consequences. I just took the opportunity to get out of the country," Penny said.
I had never heard what trafficking was all about until I was here. I didn't know anything about it at all."
Penny's story is just one of many that remain hidden. The UN estimates that some 2.5 million people are in forced labour at any given time, as a result of trafficking...
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