Alex was hiding within the forest by the shack, behind a tree using the shadow to make sure that he wouldn't be spotted. Along with a charm on his face to alter his appearance, just in case someone spots him. Stunning the people that didn't have a mark on there arm, as they apparated was his task.
He helped them out because they were forcing him too. Along with Alexis being there, he needed her to make sure that he would get her back. Yet, he had a bad feeling about this.....something had gone on, when he felt her pluse lower until it was gone. His family magic could feel a person emotions, where they were at and many more but it looks like she was gone.
" DAMN IT!! "
Alex had cursed under his breathe as he punched the tree with all his strength. He would need to find another Death Eater that knew where Naomi was, if they still had her. So he decided on doing them a favor to bring up later for the info. Aim his wand towards the trees closer to shack.
" Incendio! "
A torrent of flames had hit the tree's, causing it to be set on fire. Alex had started to get away from the tree's now, as he had started a forest fire. To attract the attention of many, while they would need to deal with it soon, or the whole forest may just burn down along with the shack.
So many of the Death eaters could have a escape route, while making sure that everyone else could get away. He would walk away from the scene, before he could come back and act like a " helpful person " Taking the long way around the forest, where it wasn't on fire yet. So he could rush in from the front and try to be a hero.