The explosive crack of shattering stone followed close behind...
Countless fragments of rock fell into the sea, kicking up sprays of fine water.
A single blast from the magic cannon shattered the nearly five-meter-tall reef, even melting a hole more than a meter wide through its middle.
The magic cannon mount on the magic airship's forward deck only trembled slightly. The ten exhaust pipes on either side spewed out large amounts of white vapor, completely enveloping the Half-Elf crew on deck, yet the magic airship did not sway in the slightest...
A gust of sea wind dispersed the vapor, and the Half-Elf crew on deck erupted in cheers...
Roy then moved closer to the Gemstone Base. Of the twelve Magic Crystal Stones embedded in it, the uppermost one had already turned into stone powder like crystal sand.
A single test shot from the magic cannon consumed one Magic Crystal Stone. The cost was still quite high...
Roy was fairly satisfied with the results of this test shot.
The worry hanging over his heart could finally be put to rest. With magic cannons installed on the magic airships, the Mine Guard Army would at least have the strength to fight against the Northern Army Fleet from Durag's Knee.
Afterward, the magic cannon entered its lengthy charging period.
In truth, the magic cannon could not fire continuously.
After completing a shot, the magic rune array on the barrel first had to cool down. Then the magic crystals embedded in the barrel had to be infused with mana. Only once every magic crystal lit up could it fire a second shot.
Roy had no intention of testing it again.
With its cannon mount, the magic cannon had finally displayed its terrifying power before the Half-Elf crew.
It had just bombarded a reef.
If