Derek made a disgusted noise - mostly at the situation, because this was fucked up, but partially at himself for making him have to run on an injured ankle. "We're almost there," he said, nodding at the border.
"We - " Derek knew that yes, they should, but he couldn't bear the thought of turning his own family in, couldn't even bear the thought of his own family being a Death Eater. "We need to get you out of here, first. That's what we need to do right now. Okay? There." He pointed ahead to the magical border, shimmering faintly. "Just a little further, do you need me to carry you?"