Secret of the Earth Star / Earth, the Marauder

From Author Wars - https://authorwars.com/books/secret-of-the-earth-star--earth-the-marauder-2506796.html

Overview:

Title: Secret of the Earth Star / Earth, the Marauder
Author: Gregory Luce
Year: 2017
Type: Omnibuses

Variant Titles:

2017. Secret of the Earth Star / Earth, the Marauder