"What's interesting is if you go back and look at the pilot, there's a page of flying monkeys in Henry's book," executive producer Edward Kitsis says. "If I would go back and re-watch it — or buy the DVD coming out in August — and you pause on the book, you might see it."
The scene in question is when Emma crashes her car and the book goes flying. "The book flips through a number of pages. There are glimpses of images, one of which are the flying monkeys from Oz," executive producer Adam Horowitz adds.
There are no current plans to venture to Oz in Season 2, but the producers are leaving the door open, an ABC rep said.
Read more at TV Guide.