Gaining trust, bit by bit

It's hard to describe Wild Things by Clay Carmichael, but it's definitely worth reading. After the sudden death of her mother, Zoe goes to live with her uncle, Henry Royster. He was a surgeon and is now a metal sculptor - a crusty, rough around the edges, but heart of gold kind of guy, living in the backwoods of North Carolina. Zoe has had a difficult upbringing, basically raising herself, and she doesn't expect to like Henry or have him care for her. The story alternates between Zoe's narrative and that of a feral cat, which provides some interesting background that Zoe's not aware of. So what are the "wild things" referred to in the title? Depending on your point of view, the author could mean Zoe, the cat, a mysterious boy living in the nearby woods, or even Henry's sculptures. What do you think?