Ollanderssci-fi

Hyperspace High

Shown by first publication year; this may not be reading order.

Cover of Frozen Enemies by Zac Harrison

Frozen Enemies Zac Harrison · 2013 · Hyperspace High

Cover of Robot Warriors by Zac Harrison

Robot Warriors Zac Harrison · 2013 · Hyperspace High

Cover of Warlord's Revenge by Zac Harrison

Warlord's Revenge Zac Harrison · 2013 · Hyperspace High

Cover of Space Plague by Zac Harrison

Space Plague Zac Harrison · 2014 · Hyperspace High

Cover of Galactic Battle by Zac Harrison

Galactic Battle Zac Harrison · 2014 · Hyperspace High