“Well, there’s no student scene,” says Rose. “First step in urban renewal. You need kids with free time, no money and a strong social network.”

“Reading your textbooks again?” asks Holly, scanning the grass. A moment later, she stoops, coming up with a four-leaf clover.

“No, my Hipster Handbook.”

“That’s worse.” Holly hands the sprig to Rose, who tries to slip it into her buttonhole and is vaguely surprised to find it occupied by another one.

“Hipsters decry gentrification,” she murmurs, “while simultaneously causing it.”

“You’re a born anthropologist,” says Holly, and picks her seventh four-leaf to place in Rose’s hair.