Harley's response is one of mature dignity; she blows a raspberry. But she's grinning.

The spires appear first, as the road climbs a hill. Then more comes into view; and more, and more, and Harley's mouth drops open as the full magnificence of the place finally comes into view. "Jack." The breathless word is snatched by the wind, and nearly inaudible. "That's incredible."

She turns wide eyes on him; but only for a second, and then she's taking it in again. "Did you design it? Is it something you had back home? It's freaking huge!"