The Russian scientist Tamara Lebedewa researched cancer for years and came to astonishing, revolutionary insights. In this book, she describes her journey to discovery. She clearly identifies the causes of cancer while also highlighting opportunities for prevention and healing. As early as the 19th century, German researchers claimed that cancer was caused by parasites. One of the most well-known experts in this field was Prof. Günther Enderlein, who repeatedly pointed out the pleomorphism of parasites. He described these so-called endobionts, which can transform from harmless forms into disease-causing and even deadly enemies. Thus, Lebedewa's scientific work fits into the research efforts of many others before her.