I thought it would be cool if the question was, "What is the question?"

If I remember correctly there was an old, old episode in the Peter Davidson or Tom Baker era where The Master was trying to steal The Doctor's remaining regenerations. So that kind of mumbo jumbo has been canon for a long time.

It was 1938, however you would be excused for thinking it was 1943 because in that odd little animated chase scene the justice robot jumps his motorcycle over a line of Tiger tanks which were not first produced until 1943, as I am sure you are all aware.

This tome sounds delightful! I can't wait to try it and love it!