Howling:Oh dear we are in trouble

Ok so if the doctor doesnt die at trenzalore then why does he have a grave why does the universe as we know it exist simple the echo of clara helped the first doctor find a tardis but if the timestream never happend whats the doctor doing inside the tardis with clara

Theory: It is a fake grave.

Theory: it is still in the doctors future (an even darker episode) since the Gi referenced him being known as the valeyard (possibly meaning that when Peter capaldi regenerates he will end up at trenzalore.

Theory: Perhaps the grave is what is left of an alternate timeline                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ☎  16:05, December 28, 2013 (UTC)