However, even these two points were somewhat in doubt. The comic TARDIS wasn't actually much of a time-travel device. As almost every story was set in the far future, it was little more than a simple spaceship. That threw the First Doctor's inclination towards historical adventures out the window. In addition, his status as "grandfather" was a point of incredulity, as well. How could he be the grandfather to John and Gillian? What was their relationship to the never-referenced Susan? How did the stories told in the comic strips relate to the television series? These were all questions left completely unanswered.