Ian Kim: 2 books

Joey isn't a normal kid. He likes to hack into people's phones and mess with them. But one day, a group of scientist come to him and says that his hacking skill is going to save the world. Joey's enemy, Louie, is trying to ruin his opportunity. There's not much time left on the clock. Will Joey save the world in time, or will Louie prevail and get his revenge?

Sarah doesn't have a normal life.  Her mom died and her grandma died.  Her dad doesn't come home often, so she's pretty much alone all the time.  When her life couldn't get any worse, she finds a peculiar box in her mom's room.  When she opens the box, she finds herself regretting that she did open it for the rest of her life.