"If we fail to act, we are looking at an almost unthinkable scenario where antibiotics no longer work and we are cast back into the dark ages of medicine where treatable infections and injuries will kill once again." (David Cameron, Prime Minister) Antibiotics add, on average, 20 years to our lives. For more than 70 years, since the manufacture of penicillin in 1943, we have survived extraordinary operations and life-threatening infections. We are so familiar with these wonder drugs that we take them for granted. The truth is that we have been abusing them: as patients, as doctors, as travelers, in our food. No new class of antibacterial has been discovered for 26 years, and the bugs are fighting back. If we do not take responsibility now, in a few decades we may start dying from the most commonplace of operations and ailments that can today be treated easily. This short book, which will be enjoyed by readers of An Inconvenient Truth by Al Gore and Bad Pharma by Ben Goldacre, will be the subject of a TEDex talk given by Professor Dame Sally Davies at the Royal Albert Hall.