Before Harry Potter can even return to Hogwarts for his second year, a house-elf named Dobby appears in his bedroom with a frantic warning: do not go back to school. Harry ignores him — and arrives to find the castle under a shadow of genuine terror. Someone, or something, has begun attacking students, leaving them petrified and frozen with fear, and cryptic messages scrawled on the walls: the Chamber of Secrets has been opened. Enemies of the Heir, beware.
As suspicion spreads and the attacks continue, Harry discovers he has an unsettling ability: he can hear a voice in the walls that no one else can detect, and he can speak to snakes in a language called Parseltongue — a gift that, in the Wizarding World, carries a disturbing reputation. Working with Hermione Granger and Ron Weasley, Harry follows the evidence into Hogwarts' hidden history, uncovering the story of a student who opened the Chamber fifty years earlier and the nature of the monster that has been sealed inside ever since.
Darker in tone than its predecessor, the second Harry Potter novel deepens the mythology of the Wizarding World and introduces the concept of magical memory as a vessel for evil — a plot thread that will echo through all seven books.