|The Return Milky Holmes|
|Japanese Title|| ミルキィホームズの帰還|
(Mirukī Hōmuzu no Kikan)
|Airdate||December 24, 2010|
|Previous Episode||The Grand Yokohoma Gorge of Fear|
|Next Episode||Farewell, Kokoro-chan. Long Goodbye Forever and Ever...|
The Return of Milky Holmes is the twelfth episode of the first season of Tantei Opera Milky Holmes.
With their Toys returned, Milky Holmes battles against Arséne, who uses her illusion Toys at their full potential, producing tangible illusions, culminating in a battle in the outer atmosphere. However, after running into her cleavage, Sherlock realizes Arséne is actually Henriette, though they appear to forget this upon crashing back down to Earth. Arséne decides to retreat and 'return' Henriette. Milky Holmes are thanked for their rescue of Henriette, only to discover their Toys have also disappeared as a result of the impact. However, Henriette postpones their expulsion and refurbishes their attic room, where they soon introduced to a transfer student named Mori Arty.