Book 1

The Attack

by Bob Doerr

Published 6 May 2014

Book 2

The Group

by Bob Doerr

Published 22 March 2016

Book 3

The Assassin

by Bob Doerr

Published 5 June 2018

Book 3

The Assassins

by Bob Doerr

Published 5 June 2018

Book 4

The Treasure

by Bob Doerr

Published 4 May 2021

Book 5


Book 5

The Scientists

by Bob Doerr

Published 10 October 2023