A Thousand Pieces Of You by Claudia Gray is an exciting and exhilarating YA novel. Marguerites parents and physicists and have created a piece of technology called the Firebird which enables you to travel between dimensions. When her father gets killed, his killer immediately jumps dimensions and Marguerite follows him through the dimensions.
I absolutely LOVE this series! It is so exciting when Marguerite jumps dimensions and I love seeing the different worlds. The idea of their being 100s of dimensions with a version of yourself in each is just so cool to think about.
A Thousand Pieces Of You is a wonderful series and I DEFINITELY recommend it to everyone!