Susan just stared for a long moment as things clicked into place. Exactly why Grandfather wouldn't talk about home for too long, why he seemed to go solemn whenever she mentioned it. And then a slight rage boiled up in her. Why hadn't he bothered to tell her?! She would have much rather found out from him than from some...random new arrival. Even if it was Jack.
"Grandfather did what?" Susan asked after a moment, just to confirm that she had heard right before squeezing her eyes shut. "Daleks. Why is it always Daleks?!"