While Yvonne hadn't rushed behind Dilan, the others had been running in the direction of the commotion that had quickly died down.
Yvonne was still the first one to arrive because she knew where to head, and there was no obstruction in the air as opposed to land which made the others reach a bit late.
So when she finally found Dilan, Yvonne landed on the ground while flapping her wings a few times to slow down the speed at which she landed before retracting the wings.
Meanwhile, Kathrine, Williams, and the others arrived not long after Yvonne, just to see the military uniforms, Soldiers holding rifles, and a few corpses of both monsters and soldiers.
"Took you guys long enough to arrive," Dilan said without the slightest change in his expression.
His words caused everyone to look down to the ground and inspect the corpses, except Yvonne, who knew that none of the bodies belonged to a member of their group.