When shabby little house-elf Dobby pops up in Privet Drive insisting Harry Potter must not return to Hogwarts, Harry suspects his arch-rival, Draco Malfoy, may be behind it. Resuced from the dire Dursleys by Ron Weasley - in an enchanted flying car - Harry spends the rest of the summer at The Burrow. Life with the Weasleys is so full of magical distractions, Harry soon forgets Dobby's frantic warnings. But back at school a sinister message found daubed in a dark corridor echoes Dobby's predictions that terrible things are about to happen.