"Antoni Van Leeuwenhoek, a quiet linen draper in Delft, has discovered a new world: the world of the little animals, or animalcules, that he sees through his simple microscopes. These tiny creatures are everywhere, even inside us. But who will believe him? Not his wife, not his neighbors, not his fellow merchants -- only his friend Reinier De Graaf, a medical doctor. Then he meets an itinerant goose girl at the market who lives surrounded by tiny, invisible voices. Are these the animalcules also? Leeuwenhoek and the girl form a curious alliance, and gradually the lives of the little animals infiltrate everything around them: Leeuwenhoek's cloth business, the art of his friend Johannes Vermeer, the nascent sex trade, and people's religious certainties. But Leeuwenhoek also needs to cement his reputation as a natural philosopher, and for that he needs the Royal Society of London -- a daunting challenge, indeed, for a Dutch draper who can't communicate in Latin." -- back cover.