The trainees continued advancing deeper into Stokil Fortress' complex, using the buildings around to cover their sides and back. The battle was getting much more comfortable for them and they could spend less energy while fighting, also as mana.
The objective was to gain more time for the Retaliation Troops to arrive and deal with those monsters. Also, soon the gates would be opened. They needed to give their all on that battle in order to survive and guarantee that Stokil Fortress wouldn't be dominated completely by those beasts.
Several minutes passed as they continued to fight against those monsters. They were all getting exhausted already, even though they found a better place to fight.
There had a lot of countermeasures that they could make in order to economize their energy and resources, but it was just to delay the unavoidable.