I'm looking for the detective novel matching this description:
I have nothing to add, except that one of my favorite lines from a detective novel (long since forgotten which one) was to the effect of “1.5 gallons of blood doesn’t sound like a lot to most people. Pour 1.5 gallons of milk on your kitchen floor and get back to me.”
— Ursula K Vernon
It's not a lot to go on, but I'm hoping such a distinctive line would be recognisable.
