No Muggleborn, not even one as clever and learned as Hermione, should know what the Hallows were, much less that they would truly make one the master of Death. Of the few wizards who had tried to unite the Hallows, most had failed. As determined and stubborn as Ron and Harry were, two teenagers couldn't possibly find in a few weeks what it took some wizards lifetimes to discover. Besides, killing Voldemort was their goal. Nothing else mattered.