Now that you’ve got all your lenses together and positioned, the beam of light (from the parabolic mirror outside, remember?) is being focused into a tight and very narrow beam that leads deep into the heart of the mountain. Following the deer and the beam of light into the depths, you find the final arrangement of mirrors that will turn the stones into lava. The beam of light doesn’t seem like it’s entering the contraption in the correct spot to do the most damage; your job today is to...
