Temporal paradox.

25 days is an eternity! I waited and, in order to get the cloak, lost half of my army. And in another game, I went up and simply broke through the dwarf outpost with almost no losses. It's like in an old joke, "Something's not right here!".
Maybe it should be made impossible to pass the upper outpost without the cloak, and the waiting time should be drastically reduced. Then there would be some logic to it.