Odd ability

In a world where everyone on earth is distinguished by their eye colour, 16 year old Ally Callister has yet to find out when her change will come or if it ever will. Each and every person has the eye colour representing their element either Water, Fire, Earth or Air. Why does Ally have yet to under go the change that every teenager around her has already experienced around the age of 13? Maybe she hasn't changed for a reason. Follow Ally as she battles with her past and fights for her future, all while trying to figure out who she is—experiencing something unlike anything before.