Before the thunderstorm got into the full swing of things and started pouring down lightning, Toz, Nil, and Lucy had managed to create a space around Mindle that should keep her safe and as much of the noise and light from the lightning and thunder as possible, away from her.
Toz and Nil had erected lightning rods several meters high in a large circle around the rock formation they used as camp. Hopefully, they would attract any lightning that would have otherwise struck close to Mindle.
Lucy had used the rocks and the darkness that had followed the thunderclouds blotting out the sun to create a concentrated dome of darkness around Mindle. It would keep the disturbance from the thunderstorm away from Mindle. It would hide Mindle's bright and firey breakthrough from any other beings in their surroundings. The dome of darkness would also help keep the mana within it steady and help Mindle absorb and convert it.