The Weed That Strings the Hangman's Bag (Flavia de Luce, #2)

by Alan Bradley

I have never much cared for flippant remarks, especially when others make them, and in particular, I don’t give a frog’s fundament for them when they come from an adult. It has been my experience that facetiousness in the mouth of someone old enough to know better is often no more than camouflage for something far, far worse.

It was like being inside a Stradivarius violin.

Reference to Sherlock?