It is estimated that between 50,000 and 70,000 Christians are imprisoned in horrific labour camps in North Korea. Hea Woo was held in one such camp. When she arrived, she saw a sign there saying, ‘Do not try to escape, you will be killed’. She said they mercilessly kicked her and beat her. ‘Death was a part of our daily life. The bodies were usually burned and the guards scattered the ashes on the path we walked down every day. I always thought, one day the other prisoners will be walking over me. God helped me to survive. He gave me a desire to evangelise among the other prisoners! He showed me whom I should approach. God used me to lead five people to faith. We met secretly, often in the toilet, because it was so disgusting that the guards never went there. I taught them Bible verses and songs. We sang noiselessly.’