What creature does Dobby warn Harry Potter about in Chapter 5?

What does Ron use to help Harry and himself get to Hogwarts from the Burrow?

Who is revealed to be the heir of Slytherin in Chapters 5-8?

What happens to Mrs. Norris in Chapter 7?

What item does Harry find that allows him to communicate with Dumbledore in Chapter 6?

Who does Harry hear speaking to him in the corridor, which he identifies as the voice of the creature from the Chamber?

What potion do Harry and Ron use to help them transform into Slytherin students?

What is the name of the house-elf that serves the Malfoy family?

What is the name of the creature that haunts the girls' bathroom at Hogwarts?

What secret does Harry learn about the Chamber of Secrets from Professor Binns in Chapter 6?

Who is the caretaker of Hogwarts during Harry's second year?

What creature does Harry encounter in the Forbidden Forest during Chapter 7?

What warning do the students receive about the Chamber of Secrets?

What mysterious message appears on the wall at Hogwarts after an attack?

Who is found petrified in the trophy room in Chapter 7?

What item does Harry receive to help him in his Defense Against the Dark Arts class?