Head of the Serpent — Allen Manning; Brian Manning

A vicious new terrorist cell emerges.

With the Hostile Response Division disbanded, John Stone wants to go back to a quiet life. But word of a tragic terrorist attack draws John back into the fight.

Now the Retired Army Ranger and former HRD member must find the leader of a new terror cell, and stop their plan to unleash chaos and destruction on a scale never before seen.

The pulse-pounding, over the top story continues in book four of the John Stone military action-thriller series!