Book of Books is a 5x3 slot with 10 paylines that features a volatile, mediaeval-themed 'book mechanic' game from Peter & Sons. When exactly two book scatters appear, you will collect Power Ups for the subsequent bonus round. These include extra spins, an expanding win multiplier, and additional expanding symbols. The expanding symbol(s) are selected at random for each free turn, and you can win up to 10,000 times your bet.
The premium symbols pay between 20 and 150 times the wager for 5 of a kind winnings, and the top-tier symbols are three eccentric characters. The gold coin Wild symbol substitutes for other symbols to help complete winning combinations, and it pays the same as the King symbol if two to five appear on the same payline.
In this game, the Book scatter symbol is distinct from the wild symbol, and landing exactly two Book scatters adds a Power Up to your next bonus round session. The power-ups can be additional expanding symbols, one to two additional free spins, or a +1 +2 multiplier boost for expanding winnings.
To initiate the Bonus Round, at least three scatter symbols must be visible, and the number of scatters determines the scale of the bonus grid. 3 scatters generate a 5x3 grid with 10 paylines, 4 scatters generate a 5x4 grid with 20 paylines, and 5 scatters generate a 5x5 grid with 40 paylines. By default, you receive seven free spins, but this number can be increased based on the types of Power Ups you have collected in the basic game.All of your collected Power Ups will be activated during the bonus round, and everything will be reset once the bonus round concludes. This game lacks the typical expanding symbol selection at the beginning. During each free turn, symbols are chosen at random to become expanding scatter pay symbols. If sufficient instances appear anywhere in view, the selected symbol (or symbols) expand to provide full reel payouts.Full reel payouts occur after regular wins, but bear in mind that regardless of grid size, all full reel payouts are calculated with 10 paylines. By landing between two and five scatters in view, you can retrigger the feature, which is accomplished as follows: