Following the publication of the final Harry Potter edition, Simon & Schuster approached the Block to bring the world of Spiderwick to the web. Another member of the children’s fantasy genre, popular with that same growing audience. The concept was to create an interactive game within a website where the user can discover hidden sprites simply by using the site. Similar to what happens in the actual books, the user can collect these sprites as they take in the world around them and browse through them all in a separate section at a later time.