Sometimes just a grain of sand can trigger a devastating rockslide, and a perfectly planned and reliable scheme can fall apart because of a tiny, unaccounted-for detail. And just the same, a measured, well-ordered life can in an instant turn into real hell when people you trusted like yourself suddenly betray you. Circumstances demand action—and immediately—but it’s not so easy to make the necessary decisions when you know they will inevitably hurt your loved ones. In such a situation, far from everyone can keep a cool head and sound judgment. Sooner or later, inevitably, you’ll have to make a hard choice and decide what matters more—feelings or duty, one person’s life or the well-being of the entire tribe, family or a pack?