4 books in series

Agent 21

Agent 21 is a 5-book series with 4 released primary works first released in 2010 with contributions by Chris Ryan.

#1
Cover 1

Agent 21

#1 of 4 in Agent 21

2010 • 10 Readers • 4.3

#2
Cover 0

Agent 21

#2 of 4 in Agent 21

2012 • 4 Readers • 4.5

#3.5
The Wire

#3.5 of 4 in Agent 21

2013 • 1 Reader • 4

#5
Under Cover

#5 of 4 in Agent 21

2015 • 2 Readers • 308 pages • 5

#6
Endgame

#6 of 4 in Agent 21

2016 • 3 Readers • 5