Recap / Eighth Doctor Adventures The Ancestor Cell

The Doctor and Fitz, traveling in Compassion, are forced to make a sudden and unexpected landing to avoid the Time Lords, who have picked up their trail again and are still trying to hunt down Compassion to use her for TARDIS breeding stock. They land inside an Edifice made of solid bone, a huge flower shape hanging in the skies over Gallifrey. The three are quickly separated (drink).

The Edifice is eventually revealed to be the TARDIS, presumed destroyed over Avalon, striving desperately to do something about the Doctor's two histories: whether he died on Dust, or Metebelis Three, has great significance. Its collapse ultimately destroys Gallifrey, which is rapidly falling to Faction Paradox.

The Ancestor Cell provides examples of: