The Angel Experiment series by James Patterson
Boston Jane by Jennifer L. Holm
The Hunger Games by Suzanne Collins
The White Darkness by Geraldine McCaughrean
The Song Of The Lioness by Tamora Pierce
The Moon Over Crete, by Jyotsna Sreenivasan (for ages 8-12)
Judy Bolton mystery series, by Margaret Sutton (old-fashioned mysteries for ages 12 and up)
Dealing With Dragons by Patricia C. Wrede
The Enola Holmes mystery series, by Nancy Springer
The Dreamhunter Duet, by Elizabeth Knox