Herad had done some work on Dead Volcano, which had become the Allied Forces' temporary base, while mining there earlier.
The rock faces along the mountain's lower half had become much steeper, forming the equivalent of walls over a hundred meters high.
As long as they held the tunnel leading up the mountain, they had nothing to fear even if the orcs sent an army.
Herad had made few major changes to the upper half of Dead Volcano.
He had merely leveled the summit, turning it into an enormous platform.
The Wildhammer Dwarves' Gryphon Riders did not care, but the gnomes' fixed-wing aircraft badly needed this mountaintop platform.
The gnomes' High Tinker Mekkatorque was very satisfied with the site Herad had provided.
Besides being level, the mountaintop platform had also been divided into several dedicated runways.
He could tell at a glance that this young High Elf Mage must have studied aircraft extensively.
In truth, Herad had not studied aircraft much at all.
He had simply seen far too many technological creations of all kinds in his previous life!
The gnomes' and goblins' advanced engineering was impressive.
But their design concepts lagged far behind Earth's technology.
Whenever Herad casually offered a few suggestions, they reacted as though they had glimpsed the truth.
Mekkatorque heard the principles behind jet engines that Herad mentioned in passing.
Inspiration immediately struck him, and he began squatting on the ground, writing and drawing.
Looking at the designs he drew, Herad was actually quite impressed.
With nothing but a simple description, Mekkatorque had come up with a preliminary jet engine design.
Of course, it was only a preliminary design and had no practical use yet.
Herad carefully examined Mekkatorque's drawings and pointed out some of their problems.
"A jet engine isn't a gas turbine. It only