" He always had some experiment or another on the go, usually involving boiling liquids and unpleasant smells. Always something bubbling in the cauldron or cooking in the small stone oven. One wall was hidden behind rows of metal cages, set one upon the other; containing animals and birds and reptiles and a few other things not so easily identified. Because you never knew when you'd need a subject to try something out on. And of course there were shelves and shelves of glass jars, holding herbs and insect parts, mandrake root and other disturbing things. Some of the things in the jars were still moving. Because alchemy's like that. "

― Simon R. Green , Once in a Blue Moon (Hawk & Fisher, #8)