The Twins Of Prophecy

"A twin for a twin"the prophecy states.
"If one go's the other must to".
But for Mya and Mason it must be different or so they say.
The ceremony is to begin 3 boys 2 girls are chosen.
Mya thinks it's all stupid cause the girls only go to become healers and a little bit more but boys get to be dragon riders.
Ohh how Mya wishes but so does Mason. I want to be normal he says each and every night. But what is about is the question.

The Prophecy
"a twin for a twin,
if one go's the other must to,
a prince and princess are born to see who adore,
a war might begin under life's preserve,
the twins choice good or bad the world might fall "
but Mya doesn't believe in any prophecy.
What will be next in there lives?