A fog of war effect hides explored areas when the player's characters move away from them.
He could not leave unnoticed until there was enough fighting so that the "fog of war" would hide him.
The fog got over our heads and hid him from us.
Then the fog came down again and hid the climbers.
"Too bad the fog is hiding everything," he said, looking toward the house.
The city is built at the foot of great mountains, there are none higher, but the fog hides everything.
"A good thick fog would hide us from eyes closer than the Republic's."
Both Austin and the captain would have been even more concerned if they knew what the fog hid.
From the dark and the fog hiding the Atlantic, no answer came.
The fog had already hidden Dularn from view in that direction.