The Joshua Files black paperbacks

The Joshua Files 1: Invisible City: Volume 1 (The Joshua Files 2nd edition), by M G Harris
The Joshua Files 2: Ice Shock: Volume 2 (The Joshua Files 2nd edition), by M G Harris
The Joshua Files 3: Zero Moment (The Joshua Files 2nd edition), by M G Harris
The Joshua Files 4: Dark Parallel (The Joshua Files 2nd edition), by M G Harris
The Joshua Files 5: Apocalypse Moon (The Joshua Files 2nd edition), by M G Harris
The Descendant (The Joshua Files): a prequel (The Joshua Files 2nd edition), by M G Harris