8) Frederick did not want to leave Topthorn when he died. Why is that?

From the text:

‘He was a friend,’ said Friedrich simply, kneeling down again over Topthorn and removing his head-collar. The soldiers stood all around us in complete silence looking down at the prostrate form of Topthorn, in a moment of spontaneous respect and sadness. Perhaps it was because they had known him for a long time and he had in some way become part of their lives.