A Red Herring Without Mustard (Flavia de Luce #3)

by Alan Bradley

With a bit of patience and a Bunsen burner, some truly foul odors can be generated in the laboratory. In 1889, for instance, the entire city of Freiburg, in Germany, had to be evacuated when chemists let a bit of thioacetone escape. It was said that people even miles away were sickened by the odor, and that horses fainted in the streets. How I wish I had been there to see it!