Brianna the Breeze

The Gone series by Michael Grant has a huge array of characters, all of whom are unique and interesting in their own way.
Some have superpowers, some are normal, some side with evil, some are heroes and some only want to maintain a semblance of normalcy in their otherwise freakish lives in the FAYZ.
But Brianna is in her own class. Known as the ‘Breeze’ by one and all, she is crazy and yet dependable. Brianna always sees the light side of things and makes everyone laugh. Even at the times of stark danger, she never chickens out. Brave forever, fun to hang out with and still innocent in her ways - that’s our Brianna.
And of course, her power, super-speed, lends her the nickname ‘Breeze’. Brianna can do a gallop as easily as walking, and at her extreme, she is almost as fast as a bullet.
Brianna has proved herself totally brave and dependable, a person who never backs down from any fight and who is extremely loyal to her friends over and over again. Fighting the gaiaphage’s bugs, rescuing Caine (though he surely didn’t deserve it then), fighting Drake Merwin relentlessly until she chopped him up (more on that later) and at the end, fighting Gaia herself. The first time, of course, Brianna almost defeated her, but the second time the Breeze went down a hero.
She will live forever in the hearts of her fans, though, and also in the first-to-kill list of Drake Merwin if he ever comes back from Hell! Oh man, I wish I could have looked at Drake’s face when he was ambushed, chopped up by her and his various pieces scattered all throughout the FAYZ!! I’m sure that was one of the best moments Brianna ever had (and I must confess, I ever had, too!)

Gone

People you've known for a long time, or forever, sometimes just disappear from your life.

This is metaphorically speaking. But what if, say, all the people of your family, all the adults in your life, just vanish? Poof! 

That is what the novel series Gone is all about. Life in Perdido Beach, dubbed Fallout Alley due to a recent nuclear radiation leak from the nearby power plant, is totally normal. Sam Temple, the protagonist, is totally normal, too. In fact, he blends into the crowd as perfectly as a chameleon. And then suddenly, poof! Everyone above the age of 15 is gone. No explosion, no flashing light, no searing sound, nothing. Just gone. Now you see them, now you don't.

Havoc breaks loose, what with children running home from school to search for their parents at home, a fire breaking out right at the centre of the town and the official town bully, "Captain" Orc deciding to take charge ( umm.. actually, his sidekick, Howard, makes the decision. Orc is not really very smart, you see.)

Sam Temple, just an average kiddo, finds himself caught up in way too many troubles to explain right now. Let's just shorten it. Perdido Beach is surrounded by a barrier, an opaque sphere that gives you an electric jolt when you touch it. It can't be crossed or broken down or drilled into or anything like that. So all the kids are just stuck inside the FAYZ(Fallout Alley Youth Zone) with no adult to tell them what to do, no parent to tell them everything was gonna be okay and no idea how to manage the resources of the town.

Through the series, Sam Temple develops great powers, protects the children from one disaster after another, gets into a lot of life-threatening situations, but escapes alive. 

And every second reading the book, I knew one thing for sure - This ain't any hero's tale, with everyone getting out alive, the main characters being always right, and everyone somehow knowing just what to do. All of them out there are kids, and no one knows what's going to happen next, no one cares about anything except staying alive and no one wants to take the responsibility for anything unless it gets them something (not excepting even Sam).

I don't know how else to describe this book but as spine-chilling, thrillin' and killing!