In Never Home Alone, biologist Rob Dunn takes us to the edge of biology's latest frontier: our own homes. Every house is a wilderness -- from the Egyptian meal moths in our kitchen cupboards and the yeast in a sourdough starter, to the camel crickets living in the basement, to the thousands of species of insects, bacteria, fungi, and plants live literally under our noses. Our reaction, too often, is to sterilise. As we do, we unwittingly cultivate an entirely new playground for evolution. Unfortunately, this means that we have created a range of new parasites, from antibiotic-resistant microbes to nearly impossible to kill cockroaches, to threaten ourselves with and destroyed helpful housemates. If we're not careful, the "healthier" we try to make our homes, the more likely we'll be putting our own health at risk. A rich natural history and a thrilling scientific investigation, Never Home Alone shows us that if are to truly thrive in our homes, we must learn to welcome the unknown guests that have been there the whole time.