The air almost vibrated with the buzzing sound of flapping wings.
Zein couldn't bring himself to count how many, because they were plenty enough to cover the light coming off the ceiling. With the way they came out of nowhere, undetected even by Bassena and Kei, they were either teleporting here after discovering the squad's presence, or equipped with a very superior stealth skill.
"Flying termites," Zein muttered, observing the swarms from Bassena's shoulder. There were dozens of those insects, each as big as a child, flying toward them with red eyes. Alone, the winged creature wasn't such a problem, even two-stars esper could easily deal with it. But in swarms, they were categorized as high-level hazards.
Strangely enough, Zein didn't feel anxious.