Uitgevers Sumner House Publishing

Cover for Allen Ozark · The Chaos Engine (Paperback Book) (2019)

The Chaos Engine (2019)

Cover for Allen Ozark · Crisis Management (Paperback Book) (2019)

Crisis Management (2019)

Cover for Allen Ozark · Containment (Paperback Book) (2020)

Containment (2020)

Cover for Allen Ozark · Early Detection (Paperback Book) (2021)

Early Detection (2021)

Cover for Penny Duncan Stephens · Eyes of the Beholders (Paperback Book) (2021)

Eyes of the Beholders (2021)

Penny Duncan Stephens