Alina was currently climbing a tree, avoiding Josiah as he chased her with was likely not mud. She was a good climber, and it helped that she wasn't holding anything. It slowed him down and gave her the advantage. That, and she was a faster person in general.
Then she heard yelling from a few feet away. Josiah's mother was yelling at him to get down. The two families had been living together ever since Alina and her family could afford to help pay rent. Which meant rules were still being figured out and inforced between parents. Not that it was Alina's or her mother's fault that Josiah was climbing a tree when he knew not to.