The 'Frozen' world is expanding, but not on film.

Random House will publish a new spin-off chapter-book series starting in 2015 that picks up where the 2013 blockbuster movie left off. The first two books, "Anna & Elsa #1: All Hail the Queen" and Anna & Elsa #2: Memory and Magic" will both arrive on Jan. 6, 2015, with two more books following later that year. They will be written by veteran author Erica David, with the hopes of "three to four" titles per year.

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