When I used to come home from school Mother used to ask me what happened that day, and I’d tell her,” said Miss Pefko. “Now I come home from work and she asks me the same question, and all I can say is—” Miss Pefko shook her head and let her crimson lips flap slackly— “I dunno, I dunno, I dunno.”“If there’s something you don’t understand,” urged Dr. Breed, “ask Dr. Horvath to explain it. He’s very good at explaining.” He turned to me. “Dr. Hoenikker used to say that any scientist who couldn’t explain to an eight-year-old what he was doing was a charlatan.”“Then I’m dumber than an eight-year-old,” Miss Pefko mourned. “I don’t even know what a charlatan is.