well what is the anthem universe exactly? it is the universe of which all magic exists and the sky's the limit for power. there are five planets so far that exist in the anthem universe but getting there is the hard part because a mere muggle cannot go. in fact neither can most witches and wizards. you need a astral projection spell in order to go the the anthem universe. the planets are the following:

mystic anthem

blue anthem

cristanthem 

imagination central 

utopium anthem 

these planets are all different in one way or anther and very seldom react with another. in the next chapter i will explain mystic anthem more in deatail.