"What's the matter?
You're not looking quite yourself.

This Brixton Road affair has upset you." "To tell the truth, it has," I said.

"I ought to be more case-hardened after my Afghan experiences.

I saw my own comrades hacked to pieces at Maiwand without losing my nerve." "I can understand.

There is a mystery about this which stimulates the imagination; where there is no imagination there is no horror.