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The Barnes & Noble Holiday Gift Guide Find the Perfect Gift | Shop Now The Barnes & Noble Holiday Gift Guide Find the Perfect Gift | Shop Now
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This item will be released on Dec 22, 2026
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Have you ever wondered what makes a true hero? Find out with Finn and Jake as they journey across Ooo to create their own HANDBOOK FOR HEROES!

With the Enchiridion, the famed guide for adventurers, seemingly gone for good, Finn and Jake set out to make a totally new, totally mathematical version—but how are they supposed to make a handbook for heroes when one of their own is seemingly . . . a villain?! With a metal doppelgänger that looks remarkably Finn-like causing chaos across Ooo—stealin...