no. 1
Angels in the Mist (The Z-Tech Chronicles #1)
Ryan Southwick
no. 1.5
Zima: Origins (A Z-Tech Chronicles Story)
Ryan Southwick
no. 2
Angels Lost
Ryan Southwick
no. 3
Angels Fall
Ryan Southwick
no. 3.5
Once Upon a Nightwalker (A Z-Tech Chronicles Story)
Ryan Southwick
no. 4
Angels Found
Ryan Southwick