In Neverwhere by Neil Gaiman, when Door and Richard first meet Islington (p. 199):
"This wine," said Islington, "is the last bottle of its kind. I was given a dozen bottles by one of your ancestors."
It handed the glass to Door, and began to pour another
Shortly, we learn it is wine from the age of Atlantis. It's simple enough a phrase that I assumed it was the general form of "ancestors" as in, your people.
Except Richard is the one to defeat the Beast of London within the labyrinth. In classic mythology, Theseus was fathered by Poseidon or Aegeus. Plato included Atlantis under Poseidon's domain. Are these clues connected, and does it mean Richard is descended from Theseus?
I want to add that Richard defeating the Beast was all the more extraordinary given that Hunter was primed as the ultimate warrior (p. 227):
I fought in the sewers beneath New York with the great blind white alligator-king. He was thirty feet long, fat from sewage and fierce in battle.
I fought the bear that stalked the city beneath Berlin. He had killed a thousand men..., but he fell to me.
There was a black tiger in the undercity of Calcutta. A man-eater, brilliant and bitter, the size of a small elephant... I took him with my bare hands.
Challenges that parallel the hero Theseus who defeats Periphetes, Sinis, Phaea, Sciron, Cercyon, and Procrustes during his journey to Athens.