25 books in series

Sigma Force

Sigma Force is a 25-book series with 25 primary works first released in 2004 with contributions by James Rollins and Steve Berry.

A Cidade Perdida

2004 • 118 Readers • 480 pages 3.8

Map of Bones

2004 • 77 Readers • 560 pages 4.2

Cover 6

2006 • 1 Reader • 400 pages

Black Order

2006 • 47 Readers • 421 pages 4.2

The Judas Strain

2007 • 42 Readers 4.2

The Last Oracle

2008 • 40 Readers 4.4

The Doomsday Key

2009 • 32 Readers 4

Cover 4

2011 • 19 Readers • 48 pages 3.9

The Devil Colony

2011 • 35 Readers 3.9

Tracker

2012 • 16 Readers • 67 pages 4.1

Bloodline

2012 • 36 Readers 4.1

The Eye of God

2013 • 36 Readers 4.1

The 6th Extinction

2014 • 29 Readers • 608 pages 4

Cover 1

2015 • 10 Readers • 59 pages 4

The Bone Labyrinth

2015 • 40 Readers • 688 pages 3.9

Cover 5

2016 • 11 Readers • 54 pages 3.6

The Seventh Plague

2016 • 31 Readers • 448 pages 3.9

Cover 1

2017 • 9 Readers • 56 pages 3.8

The Demon Crown

2017 • 27 Readers • 448 pages 4.1

Crucible

2019 • 26 Readers 3.9

The Last Odyssey

2020 • 24 Readers • 624 pages 4.1

Kingdom of Bones

2021 • 26 Readers • 448 pages 3.6

Tides of Fire

2023 • 18 Readers • 448 pages 4.3

Arkangel

2024 • 12 Readers • 672 pages • 12h 4.5