Mystical
When one or more Mystery Symbols land, a random symbol is selected from the Wild, medium or low win symbols, and all Mystery symbols transform into this symbol. The mystery symbol is the Golden Grimoire™, which is shaped like the infamous mysterious book that inspired the game.
On a winning spin, you can opt to play the Gamble round to multiply your prize by correctly guessing the colour or suit of a secret card. When the good Lady herself graces the reels in any three positions, the divine bonus round begins.