Oh. Oh. Susan looked up at her Grandfather with a pained expression in her eyes before dropping them both to the grating on the TARDIS floor. Oh.
"I thought it was oddly quiet," Susan said, turning her gaze back up at her Grandfather and raising her hand to rest on his cheek. Susan took a shaky breath as she teared up slowly before her hand dropped to his shoulder, and she leaned forward, slumping against him.