In the second edition of their "Doctor Who" reference book "AHistory", Lance Parkin and Lars Pearson attempt to reconcile the War depicted in the "Eighth Doctor Adventures" novels with the Last Great Time War depicted in the revived series of "Doctor Who". They suggest that Grandfather Paradox is the Doctor who fought in the Last Great Time War, and that his experiences left him scarred and callous, without faith in humanity. After failing to prevent the younger Eighth Doctor from destroying Gallifrey in "The Ancestor Cell", Grandfather Paradox regenerates into Christopher Eccleston's Ninth Doctor, regrowing his arm in the process. Parkin notes that this would explain the Ninth Doctor's conflicted recollection of Gallifrey's destruction in the episode "Dalek": "I watched it happen… I made it happen… I tried to stop it".