Mindscape - Andrea Hairston

The world has been divided by the Barrier. For 115 years this extraterrestrial, epidimensional entity has divided the earth into warring zones. Power-hungry politicians, gangsters, and spiritual fundamentalists are determined to thwart a potential treaty to end the internal wars. When the treaty's architect is assassinated, her protegee, Elleni, a talented renegade and one of the few able to negotiate the Barrier, is forced to take up her mantle. Now Elleni and a motley crew of allies risk their lives to make the treaty work. Can they repair their fractured world before the Barrier devours them completely?