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Clarify...
What are these "Sanctuaries"? I don't remember that...
Try to reveal some parts of the map approximately on the first turn; there's a special building for that, I don't remember the name.
Reveal it, then go towards the tent where they should give you a key (it will open with a part of the map); next to it will be a portal, and you'll use this portal to get to the tower, where you'll need the key.
Open the tower, then go to the dungeon, and you'll figure it out somehow. All that's left for you to do is to gather Inferno troops on your turn and continue...
You'll understand it yourself...
What are these "Sanctuaries"? I don't remember that...
Try to reveal some parts of the map approximately on the first turn; there's a special building for that, I don't remember the name.
Reveal it, then go towards the tent where they should give you a key (it will open with a part of the map); next to it will be a portal, and you'll use this portal to get to the tower, where you'll need the key.
Open the tower, then go to the dungeon, and you'll figure it out somehow. All that's left for you to do is to gather Inferno troops on your turn and continue...
You'll understand it yourself...