You watch for a while as the pelting and taunting continues. When one of the Goblins finally lands a decent hit on the ratrider's back, he calls out, "Oy, alright alright you lot, dat's enuff! Not bad for a bunch o' Gerbs." They all share a laugh and you can hear but not quite make out a bit of what sounds like lighthearted Goblin trashtalking amongst each other. The ratrider, at the center of the clearing, surveys the area and is taking a long pull on a water skin from his hip when his mount perks up - nose and whiskers twitching, sniffing the air while its eyes and ears move semi-independently, sweeping around the perimeter of the clearing.
The rider stows the waterskin in a saddlebag then sticks his fingers in his mouth and makes a distinctive whistle. In a slightly lower voice, he calls out, "Alright, pack it in and get ready for da night." As he says this he draws a circle in the air with his right hand.
Hearing the whistle, the other goblins immediately perk up as well and turn their eyes and attention to their leader. A quiet chorus of "Right boss, on it!" and "Looks like its bedtime boys!" follows, as the Goblins pair off.
The biggest of the remaining Goblins moves up to the boss and exchanges a few words while the rider watches his mount's behavior. After a few moments pass, the giant rodent with its matted and mangy fur, nose furiously twitching lets out a low squeak, and turns it's head in your direction. The rider gives it an affectionate pat on the shoulder, then makes a gesture with raised hands like... closing a door perhaps... and with a wicked smile says, "Oh yeah, it's bedtime boys!"
With that, the two pairs of Goblins on the perimeter disappear into the woods on either side of the clearing, the rider and his companion splitting up each following one of the two pairs.