A Poisoner’s Lab Secreted in a Beautiful Book

“This item may have been a novelty or a souvenir, reaching for an older aesthetic to boost its cachet. In any event, there’s no indication that the fake book ever really killed anyone.” However, if the first owner was really good at mixology and planning, we would never know. The evidence would have been buried. With last rites.
Germany did lead the world in chemical discoveries in the 19th century.