It's been driving me crazy....
I was hoping someone on here could help me as my memory and google-fu have failed to find this wonderful fic. I do believe that I read it on schnoogle in 2006/2007. It was Draco/Hermione (obviously), were Draco defected the summer before their seventh year. He decides to become a spy and Hermione gives him one of galleons from the DA that she has modified to carry messages back and forth between the two. Mostly, I remember this fic because right after I finished it the Deathly Hallows came out and I was so disappointed with it thinking that the above fic was much better. Please help me find this fic!