Escort Guards?

what is Escort Guardians?
Escort Guardians(the blue troops) often carry precious treasures with them.They randomly appear in the camps.Click the "faction map",then click the camp.If you are lucky,you will find them (you may check each camp if you want).
You can attack them,but you must deploy enough troops,else you cant defeat them and get nothing.You may lose some troops in the battle.

Note:If you lose the battle, you lose your troops and hero. Hero may die or fled.

Where are they? escort guardians show up randomly at different faction spots. You have to be lucky to find them and beat other people to them first. On the left side of the screen there is a faction map, click on that to see the different faction camps, and look for the escort guardians.