The video slot Golden Grimoire from NetEnt has a magical and mysterious game. Golden Grimoire (Grimoire means Book of magic spells) can be played on 5 reels, 4 rows and a total of 40 win lines. The Book is the most interesting symbol. So it contains any symbol, including the Wild symbol. The symbols on the reels are 4 different colored Jewels, Card symbols and all symbols appear in stacks. Spin one or more Books on reel number 3 to 5 so the Mystery Symbol will start. The Book changes into a new symbol. If there is a match with the symbols on the first reel, then these symbols are duplicated from the first to the location of the Mystery symbol. The Free Spin feature will be activated when you spin 3 Bonus symbols. So your prize will be 8 Free Spins and an extra booster. Mystery symbols will be sticky during the Free Spin rounds. The most valuable symbol in the main game is the Red Gem held by a Golden Scarab Beetle. The Wild replaces other symbols, except the Scatter and Mystery symbol. Wilds are only shown after a Mystery symbol transformation. Try the Golden Grimoire slot for free or with real money online.