24 books in series

Halo: Escalation

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

Halo: Escalation #1
Halo: Escalation #2
Halo: Escalation #3
Halo: Escalation #4
Halo: Escalation #5
Halo: Escalation #6
Halo: Escalation #7
Halo: Escalation #8
Halo: Escalation #9
Halo: Escalation #10
Halo: Escalation #11
Halo: Escalation #12
Halo: Escalation #13
Halo: Escalation #14
Halo: Escalation #15
Halo: Escalation #16
Halo: Escalation #17
Halo: Escalation #18
Halo: Escalation #19
Halo: Escalation #20
Halo: Escalation #21
Halo: Escalation #22
Halo: Escalation #23
Halo: Escalation #24