Maldek, Mayona or Tir

Thousands of years ago, a group of beings who had been involved in the destruction of a planet called Maldek, Mayona, or Tir (among other names), which existed between the orbits of Mars and Jupiter, were physically deported to Earth to purge his heavy karma. They were supposed to help us in our evolution, but instead of helping us they started using their skills for their own purposes.