If intention is the key to Pullman's error, then I guess we should also discourage Christians from reading Milton's polemically anti-Trinitarian, anti-orthodox Paradise Lost.And Pascal's anti-Protestant Pensees.   And Gibbon's anti-Christian Decline and Fall of the Roman Empire.  And Swift's anti-theological Gulliver's Travels.  Etc. etc.etc. And what about the Manicheeism of William Blake?  Better scratch The Songs of Innocence and Experience. Come on, guys, faceit -- Lewis was a decent children's novelist with terrible theology; Pullman isa passable children's novelist with terrible atheology.  If you can't read themwithout being led astray, don't read them; but a good fantasy story isa good fantasy story.