Masters of the Universe a third year; however, He-Man often appeared in episodes of "She-Ra" to aid his sister, and several other characters from "He-Man and the Masters of the Universe", both heroic and evil, also appeared in multiple crossovers. She-Ra was born as Princess Adora on Eternia, Prince Adam/He-Man's twin sister and daughter of King Randor and Queen Marlena. As an infant, Adora is kidnapped by Hordak (vampire/demon-faced sorcerer with a cowl of bones, who can transform his body into various mechanical devices) and Skeletor (Hordak's apprentice at the time), and taken to the world of Etheria (a planet ruled by the Horde,
He-Man this series maintained the double identity of Prince Adam and He-Man. On the planet Primus, Prince Adam posed as a traveling merchant and the nephew of Master Sebrian to disguise his secret identity. His transformation oath was altered slightly, to become "By the power of Eternia...". To tie in with a new line of action figures based upon the original toy line, a new He-Man cartoon series was produced in 2002-03 by Mike Young Productions again entitled "He-Man and the Masters of the Universe". This series retold the Masters of the Universe story from the beginning. He-Man's origin was told