The cost of being believed
Harry tells the truth all year and is punished for it: the school calls him a cheat, Skeeter's articles paint him as disturbed, and when he reports Voldemort's return, Fudge refuses to believe and breaks with Dumbledore. Meanwhile the one adult who seems to believe in him most—Moody—is the liar engineering everything. The book's point is that belief is not distributed by honesty; it follows politics and fear, and Dumbledore's counter-move is to build a network of people who trust each other over the Ministry's denial.
Characters:Harry PotterVoldemortAlastor 'Mad-Eye' Moody