Three adventurous and science fiction stories. BLACK & WHITE. In a dystopian present, little Guglielmo, immobilized in a wheelchair, is persuaded by his teacher to help Abraham, a black age, just escaped from the Confederate America where he was considered a slave. But cohabitation between them is difficult and friendship is impossible. ANOTHER LIFE. Year 1750. While they are plowing a field, the slaves Zak and Moses find a strange shell. Zak takes it home, hoping it might be worth something. But what it contains comes from the future, it could be their salvation or their destruction. HIERARCHY. The impossibility of society, accustomed to delegate to others every problem, to solve the doubts of a girl. A quick and fulminant story.