121 icons: 4x08: Silence in the Library & Challenge icons
[07] Doctor/Donna [18] Doctor/Others: River Song, Charlotte, Prover Dave, Other Dave [19] Donna Noble [37] The Doctor [40] Et Cetera: The Library, Charlotte Abigail Lux (CAL), Dr. Moon, The Note, Security Camera, Node, Professor River Song, Miss Evangelista, River Song's Diary, Proper Dave, Future!Sonic Screwdriver, Strackman Lux, Vashta Nerada, The Master, Lucy Saxon