How can it be otherwise?
I can claim that Un-Super Heroes is a biography of penicillin but everyone knows it is really about Dr (Martin) Henry Dawson - the man who gave it its first real job.
But the sum of his personal papers is rather less than zero.
As a result, I expect to be constantly re-writing the book as ever-newer information is uncovered - some of it hopefully brought up from deep in the ground by the interest 'roused' by the publication of my earlier volumes of the book.
That's my daft hope anyway ....