Reading progress update: I've read 71%.

“Do you do murders?” she asked suddenly.
“Not as a rule,” he said, taking her meaning after a bewildered moment. “I have encountered one or two.”
“What then? Robberies and burglaries and that? I suppose that’s bad enough.”
“What do you mean?”
“Well, it’s such a ghastly job, isn’t it? Daddy says in the end all detectives get the same as the greasy people they mix with.”
“Oh?”
“Yes.”
Brett marched on in silence.
Hahahaha.