"I had a cousin and she had a friend, who had a friend, who was going to get us a job in Greece," says Anna. "When we got there, the only job they offered us was … too dirty to name."
Set up by her own family, Anna, then 20, from Romania, was forced into sex slavery, servicing up to 50 clients a day and kept chained to a bed. Talking with A21 anti-slavery organisation, she describes her prison and the nightly "work" she did at a sex club.
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Walk For Freedom
A21's Walk For Freedom highlights the plight of the world's 27 million slaves.
"We had to smile, always try to smile. We had to act as if we liked it. I felt ashamed. I would see client after client, with not much break, and then we'd have to see another client.
"I could see the cameras, and they would lock the doors. You couldn't go. They would find us."
Her story is not uncommon. As a former slave, she was one of more than 27 million men, women and children who are currently trapped in slavery around the world.
Another, Nina, a Bulgarian woman, was sold into slavery aged 16 by her mother and eventually found caged in a Greek brothel by by police who told her she was lucky to be alive.
Angie, from Bulgaria, was forced to live with her cousins when her mother could no longer cope with the care of six children. On the pretence of finding her a job in Greece, her cousin sold her into slavery aged 19. She saw 40 men a day for two years and was allowed to use the bathroom twice a day.
The stories of Anna, Nina and Angie are not part of a distant problem. As the home to 4300 slaves according to the Walk Free Foundation's 2016 Global Slavery Index, Australia will on Saturday begin a global day of anti-slavery marches as part of A21's Walk For Freedom movement.
The worldwide action starts at St Mary's Cathedral Square, beginning a ripple effect of 239 walks across 39 countries, including 12 marches in Australia.
Walking in single file to Mrs Macquaries Chair and wearing black, participants will represent all slaves around the world and call for action to eradicate the global reality of modern-day slavery.
"To prevent falling victim to trafficking schemes, which target individual vulnerability, and to keep Australia's youth safe within the nation and abroad, we need to educate ourselves and the next generation around this global injustice," said Erina Low, A21 Australia's Prevention, Awareness and Education Coordinator.
For those like Angie, who was placed into care with A21 Greece after being freed, the walk gives a voice to the hidden, entrapped and vulnerable in Australian cities and beyond.
"It took me a while to answer [the Police's questions]," she told A21 after the sex club she was forced to work in was raided by police. "But the more I answered, the more they saw the slave in me."
Survivors' names have been changed for their protection.
Walk For Freedom begins at St Mary's Cathedral Square at 11:30am on October 15.