Harry Writes a Letter to Sirius About His First Week at Hogwarts

Harry wakes up early on a Saturday morning, reflecting on the long and challenging first week back at Hogwarts. He writes a coded letter to Sirius Black (using the name 'Snuffles') to inform him about the return of his mysterious scar pain and asks indirectly about Hagrid's absence. After sealing the letter, he leaves the Gryffindor Tower to head to the Owlery.