One of the most popular video game franchises ever receives a second oversized, deluxe hardcover! In this volume, follow UNSC Spartan Commander Sarah Palmer and her team as they attempt to put a stop to Dr. Catherine Halsey and Jul 'Mdama's pursuit of the mysterious Forerunner artifact, the Janus Key-the fate of the entire galaxy depends on them! Highlighting the talents of writer Duffy Boudreau and artists Douglas Franchin, Ian Richardson, and Sergio Ari o, this sizeable volume collects Halo- Escalation #13-#24, and features a cover gallery, annotations, and behind-the-scenes extras! Series Overview- Collects Halo- Escalation issues #13-#24.