Escribamens
[http://archiveofourown.org/works/787065] - - public:opalsong
After Lucius goes to Azkaban, Draco takes over as Lord Malfoy and learns that the family's success is based on a secret means of spying on their enemies. Knowledge is power - but when Draco learns the truth about Harry Potter, his father's strategies look a little less brilliant than he'd assumed. Text version here: http://www.hpfandom.net/eff/viewstory.php?sid=24885