Tough-O-Meter

We've got your back. With the Tough-O-Meter, you'll know whether to bring extra layers or Swiss army knives as you summit the literary mountain. (10 = Toughest)

(4) Base Camp

As a story that's told from the point of view of a fifteen-year-old boy, Things Not Seen is quite easy to read in terms of vocabulary, sentence structure, and overall flow. In fact, it rollicks along like an awesome adventure tale. But readers will have to suspend their disbelief for a moment to take on the novel's main premise, which is that a boy can wake up one day to find that he's mysteriously gone invisible.