Nancy Drew 02: The Hidden Staircase

After receiving a call from her friend Helen Corning, Nancy agrees to help solve a baffling mystery. Helen''s Aunt Rosemary has been living with her mother at the old family mansion, and they have noticed many strange things. They have heard music, thumps, and creaking noises at night, and seen eerie shadows on the walls. Could the house be haunted?

Just as soon as she hangs up the phone, a strange...