Sigma Force series

16 works, 12 primary works

Sigma Force, an elite covert arm of the US Defense Department made up of former Special Forces officers trained as experts in various scientific fields:


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3.93 avg rating — 26,868 ratings — published 2004 — 20 editions book 1
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4.05 avg rating — 38,053 ratings — published 2005 — 60 editions book 2
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4.13 avg rating — 22,398 ratings — published 2006 — 61 editions book 3
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4.13 avg rating — 20,083 ratings — published 2007 — 56 editions book 4
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4.14 avg rating — 22,271 ratings — published 2008 — 41 editions book 5
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4.15 avg rating — 19,636 ratings — published 2009 — 46 editions book 6
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4.12 avg rating — 5,016 ratings — published 2011 — 6 editions book 6.5
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4.16 avg rating — 16,106 ratings — published 2010 — 39 editions book 7
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4.10 avg rating — 3,098 ratings — published 2012 — 11 editions book 7.5
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4.22 avg rating — 12,706 ratings — published 2012 — 36 editions book 8
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4.09 avg rating — 10,034 ratings — published 2013 — 30 editions book 9
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really liked it 4.00 avg rating — 7,249 ratings — published 2014 — 23 editions book 10
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3.88 avg rating — 988 ratings — published 2015 — 5 editions book 10.5
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4.09 avg rating — 3,763 ratings — published 2015 — 16 editions book 11
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3.67 avg rating — 9 ratings8 editions book 12
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3.93 avg rating — 315 ratings — published 2012 — 1 edition
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Other Series by James Rollins

The Order of the Sanguines (3 books)
  • The Blood Gospel (The Order of the Sanguines, #1)
  • Innocent Blood (The Order of the Sanguines, #2)
  • Blood Infernal (The Order of the Sanguines, #3)
Tucker Wayne (2 books)
  • The Kill Switch (Tucker Wayne, #1)
  • War Hawk (Tucker Wayne, #2)
Jake Ransom (2 books)
  • Jake Ransom and the Skull King's Shadow
  • Jake Ransom and the Howling Sphinx