The Demon's lexicon, by Sarah Rees Brennan

Nick and Alan Ryves are brothers who have had to live on the run for almost as long as they can remember, since an attack by magicians on their family left their father dead and their mother driven mad. Now the magicians are hunting the brothers and their mother. When a girl and her brother show up at the Ryves home asking for help, the magicians are quickly on their trail, and the brothers are once again on the run, this time with the girl and her brother. Things go from bad to worse when Nick Ryves discovers that the girl's brother has been marked by demons, and suddenly Alan is marked as well. The only chance they have is for Nick to kill the magicians that they have run from for so long. Then Nick learns that his brother knows more than he is telling, and suddenly Nick knows nothing is as he thought it was, and nothing will ever be the same again.

Please ignore Vera Dietz, by A. S. King

Told from many different points of view - Vera (who is haunted by her dead friend/almost boyfriend) ; Charlie (Vera's friend/almost boyfriend who never believed he was good enough for her) ; Ken Dietz (Vera's dad, who would like to see Vera finish high school without self-destructing). Charlie is the heart of the book - Charlie who came from an abusive home but whose worse abuser turned out to be himself. By the time he asked Vera's help it was too late to save his own life or stop the arson at the local animal rescue, but even in death Charlie wants Vera to clear his name, if she can get past her anger with him.

Ender's game & Ender's shadow, by Orson Scott Card

I read Ender's shadow several years ago when it was on the Abe list, and enjoyed it a lot. It's taken a while, but I finally got back to the series, and this time read Ender's game, which is the 1st book in the series. These books essentially tell the same story from the perspectives of two different characters, and both are excellent.

Earth has been under alien attack for almost a hundred years, and the next attack is imminent. On earth, humans have genetically engineered children with military genius, and these children are sent to a space station battle school, where they are taught military strategy. Ender Wiggins is the world's best hope to survive, but he is young (six, at the story's opening) and has a lot to learn in a short time. His teachers manipulate behind the scenes, and the older students resent Ender's advancement as Ender struggles to survive the war games that take up most of the battle school curriculum.

Ender's shadow concerns Ender's right hand child commander, Bean.

These are science fiction at it's best - but don't take my word for it. They are on every core collection list I've ever seen and have won numerous awards for Science fiction. Great stuff!