It takes just a split second...she's good at thinking on her feet, and the decision is an easy one. She freezes in her tracks, turning around to face what will likely be her new captors. The odds were too bad...even if one arrow hit she'd be injured, losing blood, and lost. Here...well, if the Drow wanted everyone dead they would have just fired at everyone....the few girls who were hit seem to be stray shots. Things look bleak, but as long as she survives she always has a chance to escape later.