It is drawing near to the end of term, and the University at Cambridge is in turmoil over the opening of a new Common Library. There is an attack on one of the masters at a meeting to discuss the matter, and a body is found floating in the pond in the library's garden on the eve of its opening.
Meanwhile, there are rumours of a large force of dangerous smugglers lurking in the Fens. Aided by their friend Sheriff Tulyet, Bartholomew and Michael must thwart the invaders before the Feast of Corpus Christi the following week. To fail might mean the destruction of the town...
Susanna Gregory was a police officer in Leeds before taking up an academic career. She has served as an environmental consultant, doing fieldwork with whales, seals and walruses during seventeen field seasons in the polar regions, and has taught comparative anatomy and biological anthropology.
She is the creator of the Thomas Chaloner series of mysteries set in Restoration London as well as the Matthew Bartholomew books, and now lives in Wales with her husband, who is also a writer.