"Good, good. I am glad you were able to see them," Diarmuid remembers too well how angry Enoch had been when he had found her tombstone. Seeing her again would bring so much joy and comfort to Enoch's soul--perhaps even more than seeing her again had brought to Diarmuid's--that the last thing he wants to do is delay that meeting. However, since it has already happened, Diarmuid can be selfish a bit longer.

"How about we go and play a game? Or sing a song? Is there something you would like to do?"

If Diarmuid knew what Caster's real name was, one of those names would alarm him a great deal. However, he doesn't know it and so it passes unremarked on.