DESCENDER (2015) TRADE PAPERBACK #4 Orbital Mechanics

Tim-21, Telsa, and Quon finally escape the Machine Moon and head out on a quest to find the ancient robot who may hold the key to the Harvesters. Meanwhile Andy and his ragtag team close in on Tim, but their fragile alliance is shattered by Driller's revelations.
A new chapter of the heartfelt sci-fi epic by superstar creators JEFF LEMIRE & DUSTIN NGUYEN begins here.
Collects DESCENDER #17-21