US Cover of Assassin's Code

Assassin's Code
 is the fourth novel in the Joe Ledger series written by American author Jonathan Maberry. It was first published in April 2012 by St. Martin's Griffin.


When Joe Ledger and Echo Team rescue a group of American college kids held hostage in Iran,the Iranian government then asks them to help find six nuclear bombs planted in the Mideast oil fields. These stolen WMDs will lead Joe and Echo Team into hidden vaults of forbidden knowledge, mass-murder, betrayal, and a brotherhood of genetically engineered killers with a thirst for blood. Accompanied by the beautiful assassin called Violin, Joe follows a series of clues to find the Book of Shadows, which contains a horrifying truth that threatens to shatter his entire worldview. They say the truth will set you free… Not this time. The secrets of the Assassin’s Code will set the world ablaze.

Plot SummaryEdit

Major Characters Joseph Ledger

Mr. Church


Father Nicodimas

Hugo Vox


ISBN information

ISBN-10: 0312552203 / ISBN-13: 978-0312552206


Print, E-book, and Audiobook

Ledger Series order: Book 4

Preceded by The King of Plagues, followed by Extinction Machine (forthcoming 2013)