Book of Madness is an exciting and thrilling online casino game that offers players the chance to explore various horrors and unexpected twists as they spin the reels. The game is set in a dark and eerie library where ancient books hold the secrets to unlock big wins. The highlight of this game is the Book of Madness symbol, which acts as both the wild and scatter. Landing three or more of these symbols will trigger the free spins bonus round, where players are awarded 10 free spins and a special expanding symbol is chosen at random to increase winning chances. With its creepy soundtrack and creepy visuals, Book of Madness will keep players entertained and on the edge of their seats.