Dive into the mythical depths of the ocean with Poseidon, the mighty Greek god, across a classic 5x3 reel setup with 10 fixed paylines. This 'Book of' style slot features the magical Book symbol acting as both Wild and Scatter, substituting for other symbols and triggering the Free Spins bonus. During Free Spins, a special expanding symbol is randomly chosen, which expands to cover entire reels and pays even on non-adjacent positions. This legendary adventure promises potential wins up to 6,000 times your bet amidst ancient underwater ruins.