Rachel Higgins: 2 books

Chloe Smith and Brandon Sky are two ordinary teenagers in for the adventure of a lifetime when they are transported to another world where they are known as the chosen ones. They must accompany their new allies on a mission to save this new world before time runs out and the barrier that protects them is destroyed.

Chloe Smith and Brandon Sky must return to Pureville when one of their friends is captured. New enemies emerge as well as a mysterious girl with a troubled past. The chosen ones will reunite and the adventure continues as they race to find their friend before it is too late.