All 5 books by Ad Astra
Here's all I've got from Ad Astra. I haven't read any.
Ad Astra

The Extinction Trials
by A.G. Riddle
Ad Astra, 2022
Ad Astra, 2022

Lost in Time
by A.G. Riddle
Ad Astra, 2022
Ad Astra, 2022

The Solar War
by A.G. Riddle
Ad Astra, 2019
Ad Astra, 2019

The Lost Colony
by A.G. Riddle
Ad Astra, 2019
Ad Astra, 2019

Winter World
by A.G. Riddle
Ad Astra, 2019
Ad Astra, 2019