This makes the identification of special items easier.

— Description, Sonic and the Black Knight[1]

The Encyclopedia Arcana (名物大百科 Meibutsu Daihyakka?, lit. "Great Speciality Encyclopedia") is a collectible item that appears in Sonic and the Black Knight.


The Encyclopedia Arcana is a thick black and white book.


In gameplay, the player can collect the Encyclopedia Arcana during different Missions in certain areas. For then to obtain it, the player must use the ID points earned from completing the Mission where the Encyclopedia Arcana was picked up to identify it on the identification screen. When equipped to a playable character, the Encyclopedia Arcana will reduce the ID point cost for any special items the player may have collected over the course of a Mission.


  • No: 74
  • ID Point Price: 8
  • Rarity Level: ★★★★★☆☆☆☆☆
  • Item Type: Book
  • LocationTitanic Plain, Dark Hollow (earned by clearing "Defeat the Boss: Dark Queen")


  1. Official in-game description of Encyclopedia Arcana in the Treasury, item 074/247.

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