Nina and Matthias
Matthias had been watching over Nina as she rested and he hadn't been about to go investigate the source of the ringing bell until he was sure she was alright. The way she had healed the others was incredible, but he knew she'd overexerted herself and that she badly needed some rest to recover from it.
His hand moved gently over her cheek as he considered her question. "Are you sure you feel up to the walk?" he asked her. His expression was full of concern for her. Yes, he did want to investigate the ringing bell, but he wouldn't leave her or encourage he to move from this bed until he was sure she was well enough.