What is the author's tone in Into That Darkness: An Examination of Conscience by Gitta Sereny?

The tone of the book is informative. It is also somewhat philosophical, in that the author is really seeking to get to the root of things. Her desire is to understand what happened; exploring the subject's conscience, uncovering a true appreciation of the kinds of pressures, both social and psychological, to which he was subjected, are major parts of the work. The work is intended to be personal, a fact which shows clearly.