The first is Aurelia by Anne Osterlund. Aurelia is a crown princess, but there are some that don't think she should become the queen. Her life is in danger and an old friend has been given the job of protecting her without letting her know that that is what he is doing. Aurelia is independent and strong and her story is definitely fun.
Scarlet by A.C. Gaughen is an interesting take on the story of Robin Hood. Who would have thought that Will Scarlet might actually be a girl. This version of the story is full if twists and turns.
When you think of gladiators, you think of the arenas of Roman times, but this book is set in a modern setting. Girl in the Arena by Lise Haines is the story of Lyn, Lyn is the daughter of modern gladiators, but when her father is killed in the arena, Lyn is expected to marry her father's killer. She will do anything to maintain her independence and make her own choices.
Graceling by Kristin Cashore takes us to a fantasy world where Katsa has a gift. Her gift, known as a grace, is the gift of killing. Very few know of her gift, but those who do know that if they can control her, they can control the world. If you like fantasy, this book is an exciting read.