Who is Lucius Malfoy's informant?

[Meg Rose]

No: HPFGUIDX 21418

I think that the only reason Dobby is there at the end of the book is 
that he was polishing Mr. Malfoy's shoes or something (isn't he 
mentioned as carrying a towel of some sorts?)  I don't know maybe I 
am making this up but for some reason I remember this and I am too 
lazy to go pick up my copy - LOL but I think Dobby wanted to finish 
his job so he wouldn't get into trouble and without realizing it 
followed Malfoy all the way to Hogwarts?  Whatever...  CHeck the 
book - LOL