As Harry enters his fifth year at wizard school, Lord Voldemort's rise has opened a rift in the wizarding world between those who believe the truth about his return, and those who prefer to believe it's all madness and lies - just more trouble from Harry Potter.

Add to this a host of other worries for Harry . . . and you'd know what Harry faces during the day. But at night it's even worse, because then he dreams of a single door in a silent corridor. And this door is somehow more terrifying than every other nightmare combined.