Although Eric cannot communicate with anyone, he begins to react to Milly. Mrs. Sherman observes this interaction and asks Milly to keep an eye on Eric, explaining that because of Uncle Hugo's drinking, Eric is in constant danger of being taken by authorities and placed in a hospital. Milly works with Eric over the course of the school year and takes notes on his progress, which is slow at first. Milly notes excitedly the first time Eric smiles on his own rather than merely copying her own smile. Eric does nothing when Milly throws balls to him, except for one day when he spontaneously reaches out and catches a stray baseball flying toward Milly's head.