What did Luther do after the Holy Roman Emperor Charles V banned the printing and selling of Luther's works?

After the Holy Roman Emperor Charles V banned the printing and selling of Martin Luther's works, Luther continued to write and disseminate his ideas discreetly. He sought refuge in the Wartburg Castle, where he translated the New Testament into German, making it more accessible to the public. Despite the ban, his followers and supporters continued to circulate his writings underground, ensuring that his reformative ideas spread throughout Europe.