Harry Potter and the Half-Blood Prince by J.K. Rowling

The Minister of Magic visits the Muggle Prime Minister to inform him that Voldemort is back and wreaking havoc on the wizarding world and the Muggle world.

Meanwhile, Bellatrix and Narcissa visit Snape, imploring the professor to help Draco. Voldemort has given Draco an assignment and Narcissa is worried. Snape makes an Unbreakable Vow to watch over Draco and carry out Voldemort’s orders if Draco fails.

At the Weasleys, Harry arrives and learns that Bill and Fleur Delacour are engaged. Harry, Hermione, and Ron receive their O.W.L. (Ordinary Wizarding Levels) test scores. Harry failed Divination and History of Magic, but did well in everything else.

Harry receives news that he is the new Quidditch Captain. The friends head to Diagon Alley, which is more empty than usual because people are afraid. They go to Fred and George’s joke shop, which is thriving despite the depression in Diagon Alley. Harry spots Draco Malfoy outside, and follows Draco to Borgin and Burkes, a store that sells Dark Arts objects. Draco asks the proprietor to keep something for him and repair it.

Afterward, Harry sneaks into Slytherin’s train compartment to spy on Draco, and hears Draco bragging about moving on to better things. As everyone disembarks, Draco catches Harry, paralyzing him with magic, breaks Harry’s nose, and throws the invisibility cloak over him and leaves him there.