About the book: year / 2004. Barren flowers and wormwood have been growing on Severus Snape's grave for a long time. Hermione Granger is offered an unusual and difficult task: to travel to the mid-eighteenth century, solve several important problems and find a person who, according to the Ministry, is trying to quietly change the course of history. Hermione alone cannot cope with this task. She needs an experienced companion.