24 books in series
Halo: Escalation
Halo: Escalation is a 24-book series with 24 primary works first released in 2014 with contributions by Chris Schlerf, Brian Reed, and Duffy Boudreau.
Halo: Escalation is a 24-book series with 24 primary works first released in 2014 with contributions by Chris Schlerf, Brian Reed, and Duffy Boudreau.