As the gate of the keep crashes open, it's not orcs, but smaller creatures that stream out, a pack of ten kobolds following on the heels of a rather thuggish looking gnoll. Yelling out in broken common, he points at the ground in front of him, brandishing his battle axe. "Intruders! You... come now, surrender, or we kill!" The kobolds let out their own high pitched war cry at that, thrusting their spears in the air. (The group is about 30 feet forward of where you are, and sixty feet down. You get a surprise round because they don't think to look up, then roll for initiative.)