Arne was surprised when he entered school that first morning and got his first glimpse of Herr Professor Engstrand. Somehow, from Oscar’s remarks, he had expected to see an elderly gentleman. Herr Professor didn’t look much older than Gustav. But he certainly was not like Gustav in any other way. There was no laughter in those stern gray eyes, and his mouth, straight and firm, didn’t look as if it ever even smiled. He stood stiffly beside his desk, his shoulders squared.