The hostages that hadn't already fled quickly did, either alone or with the assistance of Red Wasp and Spitfire.  The grenades floated towards Quasar, bouncing and clumping together.  As Superbus grabbed Quasar, she caused the other woman's attention to waver.  Two grenades bounced together a bit too forcefully, and whether through an impact fuse, a tamper failsafe, or just bad luck, they detonated.<br/><br/>The black was largely contained by Quasar's power, but enough of the shockwave escaped to toss the two remaining people in range like pebbles in a river.  Quasar and Superbus, already airborne and nearly out of the building, were thrown across the street and slammed into the brick wall on the far side.  They were alive and, mostly, unharmed.  Though they would certainly be feeling the aftereffects in the morning.<br/><br/>As the sound faded, everything was calm except for an office full of paper raining down on the street, and the distant sound of approaching sirens.