The newly-released Pokémon Brilliant Diamond and Shining Pearl include a teasing new addition fans believe is a hint to next year's Pokémon Legends: Arceus.
A fresh book has been discovered in Diamond and Pearl's Canalave Library — a location found a fair way into the game — with all-new text that describes a mysterious Pokémon legend.
Brilliant Diamond and Shining Pearl are pretty straightforward remakes of the Game Boy Advance games — so the inclusion of something not in the originals stands
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