Before I even start this is for the quest A-Maze-Ing in the frozen map during the campaign and you should save after every section you enter as they are deadly to your hero even a 10,000 hp one can be one shot by them and there’s also an achievement to get to the treasure without being harmed once.

You must go to north eastern island and find the rock (admit that you don’t know the solution to the rock) and the rock will tell you a story after that go back to the maze eastern side and you will see a blue spot next to the entrance to the maze put 1 of your heroes on it and you will be able to enter the 1st section of the maze, then walk through the maze to that side where the cave is you will be able to enter the 2nd section then walk to the north entrance to enter then you go back to the cave side gate in the 3rd second row and enter and do the exact same for the 4th section, then go to the south gate in the 5th section then in the 6th go to the north eastern side enter then go to the east and enter again and you’re at your treasure without hurting your hero. :D

Another way I heard on another forum page is that you can cheat it by using a flying unit if you build the gargoyle upgrades in your elven base.

All credit for this goes to http://gtm.steamproxy.vip/id/aculaa08 as without his help I wasn’t able to do this myself I just fixed up some parts of his work.