With a loud crack the barrier began to fall, the explosions tearing through the mana and making it impossible for the Fiends supplying the mana towards it to continue justifying their expenditure, so without much fanfare the iridescent barrier simply shattered.
One moment it was withstanding the relentless barrage of explosives and whirling tornados ripping at its surface and then the next it was gone, allowing the next spells to streak through the air and crash amongst the monsters waiting outside of the walls.
The six of us jogged behind the first battalion of soldiers, using their shields to protect ourselves as they marched forwards in uniformed steps, each of their blades pointed at the enemies before us.
Even as the barrier collapsed they maintained the same pace, and the sea of monsters that awaited us was already experiencing the fluctuations that came from gigantic spheres of flame crashing down amongst them, setting their fur alight and charring any exposed flesh.