The Key of M-Dhe (also known as Sky Temple Key 8) is the seventh Sky Temple Key required for access to the Sky Temple in Metroid Prime 2: Echoes. In the Defiled Shrine in the Sky Temple Grounds, Samus must first destroy four Warrior Ing that appear (creating a Super Crystal/Beacon with the Annihilator helps), locate the Flying Ing Cache in another spectrum, then destroy it to obtain the Key. This can be obtained before the Light Suit.