Which famous children's book series generated over $1 billion in retail sales through a strategic brand collaboration with Universal Studios theme parks?

In the competitive publishing world, authors and literary brands increasingly partner with companies to expand their reach and create unique merchandise. These collaborations blend art with commerce, creating distinctive products that celebrate beloved literary works while generating new revenue streams. How well do you know these notable partnerships between the literary world and commercial brands?

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Harry Potter (J.K. Rowling)
Chronicles of Narnia (C.S. Lewis)
Percy Jackson (Rick Riordan)
A Series of Unfortunate Events (Lemony Snicket)