First a horse in Brisbane falls ill: fever swelling bloody froth. Then thirteen others perish. The foreman at the stables becomes ill & the trainer dies. What is going on? It takes months to establish that the cause is a virus which has travelled from a tree-dwelling bat to horse & from horse to man. The bats had lived undisturbed for centuries in Queenslands eucalyptus forests. Now the forests are being cut down & the colonies of bats are roosting elsewhere... Spillover" tells the story of such diseases. As globalization spreads & as we destroy the ancient ecosystems we encounter strange & dangerous infections that originate in animals but that can be transmitted to humans. Diseases that were contained are being set free & the results are potentially catastrophic. In a journey that takes him from southern China to the Congo from Cameroon to Kinshasa David Quammen tracks these infections to their source & asks what we can do to prevent some new pandemic spreading across the face of the earth."