Really cool idea! Add a possibility to send you tips for other books. Here is mine: "As GREGOR SAMSA awoke one morning from uneasy dreams he found himself transformed in his bed into a gigantic insect" Metamorphosis by Franz Kafka
obligatory note that there's no great single translation for Ungezeifer. Vermin, pest, insect, arthropod, spider, bug, mouse, "animal unfit for sacrifice" all fit https://en.wiktionary.org/wiki/Ungeziefer