Save filled.
OK....you didn't think Imak was going to make this easy for you by having all his men head straight for the trench. He's done this too many times.
With the superiority of horsepower, he feels comfortable splitting his forces. Admittedly he may have miscalculated in the sense that he didn't realize there would be a small but real counter cavalry charge. This splitting of the attackers makes it both harder and easier for the good guys, since there is less of a concentrated assault but they are going to have to scramble in different directions.
Five of Imak's men are riding north and west. They are going around the back of camp and looking for the women and children who are hidden. You can see what their orders are if they find them.
That leaves about 10 men who are safe and intact and are riding south right behind Imak, planning on approaching the camp from that angle. Another 10 of his men have disobeyed and/or not heard his orders, and they are heading straight for Athwen and the trench disaster. These young men would be very happy to take Athwen prisoner, though I suspect a few of them will be taken out by the trench. Still it only takes one or two to throw her over their saddle and start racing off with their prize!