Tina took a step forward and unleashed another Mental Storm at the swarming mass of Black Beetles rushing toward her before retreating to the rear. Yam immediately moved up to take her place. When the Black Beetles came crawling over again in a dense tide, he sent out a Storm Blade, shredding a huge swath of them into pulp.
After using Mental Storm so many times, Tina's Mental Power was beginning to feel exhausted. Fortunately, she still had plenty of ability energy left, and Mental Storm did not consume much Mental Power.
However, she knew that everyone was doing all right against the Black Beetles for now. All the Ability Users advanced and retreated in an orderly manner, neither hurried nor sluggish, and still had ability energy in reserve. But as time went on, some of them might run short on ability energy. Everyone knew what the consequences would be.
Therefore, they needed to break away from the battle as quickly as possible, preferably by isolating the Black Beetles. But how could they isolate the Black Beetles in the cave? There was only one way: enter the next cave.
Thus, if they quickly opened the passage gate and closed the cave's stone door behind them, they could cut off the Black Beetles' swarm. The cave's stone door had a fairly good seal and could completely block the Black Beetles.
The Black Beetles were still pouring out in an endless stream, seemingly without end. Their numbers were simply too great, leaving the Ability Users struggling to cope. They could not afford to waste too much time.
That meant Blasting Open the cave gate was not a viable option. Not only would it waste time, it would also allow the Black Beetles to follow them.
After thinking for a moment, Tina said,