This is probably the museum, he thought. Looks like there's a party.
A party where the only guests appeared to be ordinary human beings.
Harry was about to leave when someone called him over. "Hey," a young man said, "are you here for the party?"
"No," Harry said. "Just passing by."
"Yeah? There's lots of extra food and stuff. Come join us."
"Okay." Harry had some wine and hors d'oeuvres, and immediately felt much better. He'd been seriously overdue for dinner.
Later, a pretty young woman came up and started talking to him. She said her name was Natalie, and that she was a copy editor who enjoyed indoor rock-climbing. She and Harry chatted for hours, and Harry forgot all about his quest.
By the end of the evening, however, he had her phone number and a lunch date for the following Wednesday.
(Well, this wasn't so bad, at least for Harry. But what of the Quest? Try again?)