Forest
Well, it seems Staccata managed to come across an enemy mercenary band. While it would be unlikely that they'd be amiable to talk before calling for help, there may be some paperwork or messages to rifle through. Plus they're distracted so there's that.
The mare waits for one of the mercs to get themselves separated. Then she'll sneak over and introduce somepony's back of the skull to a blade hilt.