Finding an ancient alien relic might save the world, but in the process will it tear Henry and Lucy apart? Henry is on his last nerve. The Appalachian Trail isn't exactly a picnic, at least not when you're trying to hide and survive. Lucy is grumpy all the time. Keikiki won't even let him try to get better with the language and Henry's stuck doing the same exercises day in and day out. When what he really needs is to learn faster. Especially if he's going to undo the disaster he set in motion at the White House months ago. Which means that it's not at all Henry's fault when one night he sneaks out to practice the language. And possibly awakens an ancient power within an even more ancient mountain. But, hey, it's cool. He's the most powerful kid on earth, right? After all, he knows that if he just practices hard enough, long enough, desperately enough, that everything he's done wrong will be made right. Never mind if he ignores his best friend, or puts his mentor in danger. Never mind if he pushes away the people he values, even if it hurts him more than he dares to admit. Because if he can just save the world, it will be worth it in the end. Won't it? Join Henry and Lucy in the second book of The Determiner series!