Frank doesn't know what a Muggle is, and despite being offended that Voldemort called him one when it is explained that term means he's not a wizard, he is still determined to inform the police about the intruders' plot but horrified upon seeing Voldemort's weak form.Voldemort then casts the Avada Kedavra curse, ending Frank's life before the book can describe what Voldemort looks like.
Harry considers writing to his best friends Ron Weasley and Hermione Granger, as well as the Hogwarts Headmaster, Albus Dumbledore, but eventually decides to write a letter to his godfather Sirius Black, an escaped convict.
Sirius was actually framed for his crimes by Peter Pettigrew, but, as the entire wizarding world except for Harry, Ron, Hermione, and Dumbledore believes him to be guilty, Sirius is in hiding.
" On Sunday afternoon, the Weasleys attempt to use Floo Powder to access the Dursley household, unaware that they have an electric fireplace.
The Dursleys are shocked after Mr Weasley destroys half the sitting room.
Harry does not mention the dream, only his scar hurting, and plans to send the letter once Hedwig gets back.