"The Death of Grass" is a dystopian novel by John Christopher that explores the collapse of civilization due to a deadly virus that kills all grass and cereal crops. This catastrophic event leads to widespread famine, as the food supply dwindles and society begins to unravel. The story follows a group of survivors, including Roger Buckley, who embark on a perilous journey to find safety and sustenance. As they navigate the challenges of a world in chaos, they confront moral dilemmas and the harsh realities of survival in a landscape stripped of its natural resources.