Symbols with additional features
The developer has used two special symbols at once in Book of Ra. Both the scatter and the wild look the same - they are hidden under the image of the Golden Book of Ra. Simultaneously, three or more scatters in one spin will bring both winning and activation of ten free spins. And precisely is during the free spins you can encounter the symbol - the book, which will expand and give a monetary reward.
The wild can appear on any of the five reels and substitutes for any symbol to form a winning combination, but only when there are enough matching symbols. Combining these two functions in one symbol has an advantage - the scatter does not interfere with the appearance of winning combinations, but rather is a part of them. Therefore, the final payout will be higher.