Complex sentence: Leaving Aidan in Ruth's care, Rachel heads for Moesko Island to speak with Anna's widower, Richard Morgan, while Noah travels to Eola Psychiatric Hospital to see Anna's medical files during her time there.
Split into simpler sentences: Leaving Aidan in Ruth's care, Rachel heads for Moesko Island to speak with Anna's widower, Richard Morgan. At the same time, Noah travels to Eola Psychiatric Hospital to see Anna's medical files during her time there.