Chas didn't like what Serena was possibly implying after he gave his answer about the hit to the head. Josh however agreed to do so and moved the light toward John's eyes so Chas could check for any possible signs of possible internal head injuries. "Tell me what to look for Serena" Chas said as he looked John over. "John do you remember hitting your head at all?" He asked him. 

Fia let go of him, not wanting to hurt him when he groaned. Hearing him think out loud made her sigh and run a hand through her hair. "I...I don't know. We must have changed mum going dark...right?" She theorised, or more accurately, hoped. "But, what if dad getting hurt is linked to it?' she hesitated in asking, but the question was now swirling round in her mind.