Hector does not yet notice that Ajax is fighting on the right-hand side of the battleground since he, Hector, is at this moment fighting on the left-hand side, near the banks of the river Scamander. Although the perception is attributed to Hector here, the actual perspective is that of the Master Narrator, who consistently views the scene of chariot fighting from the Achaean point of view. In terms of this perspective, Hector is now fighting on the east side of the battleground while Ajax is fighting on the west side. The map of the battleground can be visualized on the cumulative basis of references, as here at I.11.497–500, to left-right positioning in descriptions of the fighting. What follows is an outline of the overall mapping. The Achaeans are encamped in the north and defending the Wall that separates them and their beached ships from the Trojans, who are attacking from the south. The river Scamander, flowing from the southeast toward the northwest and emptying into the Hellespont, separates Troy in the northeast from the encampment of the Achaeans in the northwest. Meanwhile, the Wall of the Achaeans separates their encampment and their ships in the northwest from the Trojans who are attacking the Wall from the south. The Achaeans built the Wall because the Trojans, emboldened by the momentum of Hector, have by now crossed over from the southeast side of the river Scamander to the southwest side, moving into the plain situated to the south of the Achaean Wall. So now this whole plain to the west of the Scamander has become a battleground for chariot fighting. Hector is fighting further to the east, staying close to the west bank of the Scamander, while Ajax is fighting further to the west.