Yvonne Nachtigal: On an Angel's Wing As the medical team worked to remove a huge tumor from her brain, Yvonne Nachtigal found herself seated on the wing of an enormous, beautiful, but also wounded guardian angel. Yvonne earned her degree in journalism in 2021, and is the author of Glimpse of Glory. Researching her NDE, and others, has led her into controversial theories about science and the occult.