The shifter King

They say having twins or triplets is rare and they are lucky one set is born every hundred years or so and never at the same time. They also say that the "multiples" are children of Gods or are Gods themselves and have powers but the stronger one tends to have more than the other. Apparently it's bad to slipt up the "multiples" because a curse falls on those who do.
what happens when both a set of twins and a set of triplets is born to the same parents?
Sylvianna has just found out about her twin Simon who has been missing since they were ten, she has also just found out about the prophecy and everything being a twin or triplet comes with. She sets out on a mission to find him and discover her powers when a chance meeting leads her to finding her mate. will he help?
can the twins find each other? what are their powers? what happens if the twins fall into the wrong hands?
This is Sylvianna's diary documenting her point of view and the events that occured, things she unveils, the puzzles shes solves and the secrets she reveals on her journey

*not edited*