'Half-Blood Prince' opens in Boston

From Left: Kevin Danielczyk (Draco Malfoy), 18, of Needham, Gabriela Follett (Professor Trelawney), 18, of Dorchester, Jeff Aube (Dobby), 18, of Cambridge, Caroline Casey (Winky), 17, of Wellesley, Ryan Egan (Harry), 18, of Dorchester.
From Left: Kevin Danielczyk (Draco Malfoy), 18, of Needham, Gabriela Follett (Professor Trelawney), 18, of Dorchester, Jeff Aube (Dobby), 18, of Cambridge, Caroline Casey (Winky), 17, of Wellesley, Ryan Egan (Harry), 18, of Dorchester.
Taylor Adams/Globe Correspondent