Dual Summoner and the darkling

Born to a Tidemaker and a Sun Summoner for parents, Amira Silina finds herself the first of her kind a dual summoner having both Tidemaker and Sun Summoner abilities. When she's living in the little palace with the others around her age (8), she's trained by Baghra who warns her to hide the sun from the general. Now at the age of 17 almost turning eighteen, can she stay hidden?