Luna Lovegood and the Dark Lord's Diary

Tom Riddle's plans fall through when Ginny Weasley loses his diary shortly after starting her first year and it is found by one Luna Lovegood. A series of bizarre conversations follow. Luna? - Yes Tom? - I've been giving this a lot of thought...and I believe you may be insane. (Not crack. I repeat, not crack ! Plot takes a few chapters to appear but it's there)