Been thinking things over, got a nitpick. Clara's age. Last week, it's implied she's 24 (the most recent age printed in her book). This week it's implied she was 11 when her mother died (most recent age when standing in the cemetery).
So now we got a problem, when is Clara supposed to be from? Since her mother died in 2005, and assuming Clara is meant to be from 2013, that would mean she should have been 16 in 2005. Interestingly enough, 16 is one of the ages (along with 23) that have been skipped over in her book (which some are specualting could be significant). On the other hand, if she were indeed 11 in 2005, than in order to be 24 she would be from 2018 which is consistent with all the leapfrogging through the modern years done throughout the first half of the season. Indeed, by time of their departure, Amy and Rory should have been from 2016 or so, even though that episode has 2012 spoken many times.
Thoughts?
Ah! I see where you got mixed up. The book originally belonged to Clara's mother, and it was she who wrote "Property of Elle Ravenwood aged 11" into the first page. Clara's list of ages is on the next page.