Grandpa Blood Culture

Here's the philosophical question of the day: how do you know that your memories are an accurate record of what you have experienced? Are your childhood memories your own, or do they reflect the stories others have told you about yourself? Are some of your memories completely fabricated from the cloth of fantasy?

That's precisely what Edgar is up against here. He thinks he remembers his grandfather on his own terms, but his memory of the old man is only through the mementos of others.