Shelby and Shauna Kitt and the Dimensional Holes by P.H.C. Marchesi (Goodreads Author)
Shelby Kitt never gets lost. Shauna, his sister, never gets sick. As far as most people are concerned, the inseparable Kitt twins are odd 13-year-olds. No one, however – not even Shelby and Shauna – can guess how extraordinary they are until the vice consul of Miriax, a planet from another dimension, asks them to take part in a dangerous mission. From that moment on, Shelby and Shauna Kitt discover that the universe is full of klodians, cities in jungles, giant bats, and tea with mushrooms. Most of all, they discover that it will take more than special powers for them to face – and survive – the evil that threatens the galaxy.
Shrouded Secrets by Joel T. McGrath (Goodreads Author)
When a teenage brother and sister inherit secret metaphysical powers, they are unknowingly hunted by a group of clandestine immortals. While one of the siblings will reluctantly choose the path of righteousness, the other will defiantly dabble with the promise of true power and the darkness that accompanies it.
As David James begins his freshman year of high school, he learns that his older sister Danielle’s popularity isn’t genetic. However, their lives change dramatically with the discovery that they possess power which grants them vast unearthly abilities. The more they strive for reasonable normality, the more unstable their powers become when combined with the stresses of high school teenage life.
While jealousy, love, and anger unhinge their once typical lives, temptations to abuse their newfound gifts are manipulated by a shrouded and unyielding adversary who seeks to cast earth into a modern dark age.
Soon secrets will injure the ones they love as the burden of true power begins to isolate them. Not even the ominous prospect of a crumbling world matters when each of them finds that they are helpless to control their own desires.