Board Thread:The Panopticon/@comment-4028641-20151008023030/@comment-27343779-20191118203748

The picture in question. The narrative is clear that it was a younger and inexperienced Master right before the First Doctor and Susan leave Gallifrey.

File:Birth of a Renegade illustration 3.jpg

The story has the Master telling these events to the Fifth Doctor who has a wiped memory of the events.

Most of this story is completely ignored by most writers, but it still is considered valid.