"My sister has your action figure!" Okay, so not the time for this. Jaime cringed. Wasn't revealing he had a sister against some sort of superhero code, too? 'maldiciĆ³n.'
"Sorry." Jaime made sure the blades were away before he held up his hands again. "You surprised me. Um, so, there are hostages in there?" He cleared his throat. 'Sound more confident, chorra.' "And they're blocking all the exits, but um... I have this... thing I can do. But it's risky."
Risky wasn't the right word. It was scaled way down from the scarab's original idea (or original ten ideas), which would have resulted in a lot of dead people, or a big hole in the middle of Manhattan. "If I emit low-frequency sound waves into the bank, it'll cause everyone inside to experience nausea or discomfort." High-frequency would destroy their eardrums and cause severe pain. "It's used against terrorists and for crowd control, so..."
It still made him uncomfortable, but it would stop them cold. Then the scarab spoke again. "What? OH. Oh." Jaime looked at Booster. "Um. I couldn't do the signal longer than fifteen minutes or it would cause damage to their brain tissue that would show up on encepalograms like minor head injuries." So there was that.