How very strange it must be, to hear from one's descendants after death.

[Not that he can relate. Fathering children? Absolutely not in the cards. Impossible to imagine. No, no, never.]

Ogre Street...I have familiarized myself with London's every neighborhood, but that is one I have not heard of. Pray tell, what year was it that you found yourself under attack there?

[Maybe it only came to be in Sherlock's future -- or perhaps it is a different London altogether.]