Behind Enemy Lines is the sixth book in the Infinity Ring series, which was written by Jennifer A. Nielsen. It was released on November 26th, 2013.

Summary Edit

World War II is raging across Europe, and the Axis and Allied powers are in a stalemate. Dak, Sera, and Riq can tip the scales in the Allies’ favor . . . if they can pull off the most daring spy mission of all time. But even if they succeed, are they playing into the SQ's hands?

The book comes packaged with a full-color, two-sided, collectible Hystorian's Guide, a player's strategy guide to the online adventure.

Follow the map, study the Guide, and save history!

Book Summary Edit

Known SQ Agents Edit

  • Tilda a.k.a. The Lady in Red
  • Anton 
  • Cleo 

Known Hystorian Agent Edit

The Known Hystorian of this time period is Cadet Ducan Shaw.

Hystorian Guide Edit

The Hystorian Guide for Behind the Lines is called Hidden Treasure. 

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