Secret of WhiteTree: Craster's Sons & the White Walkers - A Song of Ice and Fire - Game of Thrones
b'What do the Others do with Craster\'s sons, whom he gives them as "offerings?" How does this unholy practice sustain the Others existence? How does it work, and why the weirwoods like magical drinking straws for the Others to... yeah this one is gonna get a bit gnarly, fair warning.'