What happens the first time the special symbol expands on a reel during Free Spins?

The symbol fills that reel and one additional copy of the same symbol is stored above it. That collected copy becomes part of future expansions on the same reel.

How can an expanding symbol eventually count as 10 symbols on one reel?

Each successful expansion stores another copy above that reel. Future expansions combine the three normal reel positions with the collected copies until the effective count reaches the maximum of 10.

Do all six reels share the same expanding symbol collection?

No. Each reel develops independently. A reel that has expanded several times can have a much larger effective symbol count than another reel that has never expanded.

Why can repeated expansions on the same reel become increasingly valuable?

Every previous expansion adds another collected special symbol above that reel, so the next expansion can contribute more copies of the symbol and create more winning ways.

What values can the regular multiplier Wild carry?

Each multiplier Wild carries either 2x or 3x and can appear on reels 2 through 6.

What happens if two multiplier Wilds contribute to the same winning way?

Their multiplier values combine multiplicatively. Two 3x Wilds within the same qualifying way can therefore create a 9x multiplier on that payout.

How many Free Spins do three or more Books award?

Any qualifying trigger with at least three Book Scatters awards 10 Free Spins. Additional Books increase the immediate Scatter payout rather than the starting spin count.

What do three, four, five and six Book Scatters pay?

Three Books pay 2x, four pay 10x, five pay 50x and six award 500x the total bet.

What happens to the collected expanding symbols after a Free Spins retrigger?

They remain in place. Another 10 Free Spins are added without resetting the reel specific expansion progress already achieved.

Does buying the feature for 100x allow the player to choose the special expanding symbol?

No. The Bonus Buy provides direct access to the standard Free Spins round, but the special paying symbol is still selected randomly before the feature begins.

Book of Golden Sands

Name: Book of Golden Sands
Author: Pragmatic Play

Book of Golden Sands takes one of the oldest bonus structures in online slots and gives it a progression mechanic that makes repeated expanding symbol hits increasingly valuable. Pragmatic Play uses 6 reels, 3 rows and 729 ways to win, combining classic Egyptian imagery with multiplier Wilds carrying 2x or 3x values. The familiar Book acts as both Wild and Scatter, but the real innovation appears during Free Spins, where every successful expansion permanently adds another instance of the chosen special symbol above the reel involved. Future expansions on that reel then count those stored symbols as additional positions, creating considerably larger ways wins as the feature develops. With high volatility, a 96.46% RTP and maximum potential of 10,000x the bet, Book of Golden Sands rewards bonuses where the same reels expand repeatedly. Regular wins require matching symbols to appear on consecutive reels from left to right, beginning with reel 1. Because the game uses ways rather than fixed paylines, every suitable symbol position on an adjacent reel can contribute towards another winning way. Egyptian runes occupy the lower end of the paytable, while jewellery, snakes, Cleopatra, Horus and the Pharaoh provide the premium values. The Pharaoh is the strongest ordinary symbol and can pay 5x the total bet when six appear in a qualifying combination. A separate Wild symbol can appear on reels 2 through 6. It substitutes for all regular paying symbols but not for the Book Scatter and always carries either a 2x or 3x multiplier. Whenever a Wild forms part of a winning way, its multiplier increases the payout from that combination. If several multiplier Wilds contribute to the same winning way, their values multiply together, allowing two or more Wilds to create substantially stronger combinations than an ordinary substitute. The golden Book performs the traditional dual role of Wild and Scatter. As a Wild, it substitutes for regular paying symbols. As a Scatter, it pays regardless of reel position and triggers the main bonus when at least three appear. Three Books pay 2x the bet, four award 10x, five pay 50x and six produce 500x. Landing at least three Books triggers 10 Free Spins. Before the first spin, one regular paying symbol is randomly selected as the special expanding symbol for the entire feature. Any standard symbol can be chosen, meaning a bonus with the Pharaoh as the special symbol carries considerably larger individual expansion payouts than one built around a lower paying rune. The first time enough copies of the special symbol appear to create an expansion, those symbols expand vertically across their respective reels after normal wins have been evaluated. Unlike a conventional Book mechanic, the effect does not end there. One additional instance of the special symbol is stored above every reel that expanded. Those collected symbols change the mathematics of future expansions. A normal reel contains three positions, but if the same reel has previously collected three additional special symbols, the next qualifying expansion on that reel effectively counts six copies rather than only the three visible positions. Continued expansions add another stored instance each time, allowing the total number of symbols counted on a reel to grow progressively. The maximum is 10 special symbol positions per reel. This means a repeatedly expanded reel can eventually contribute ten copies of the chosen symbol to a ways calculation even though only three standard reel positions are visible beneath the collection area. Since several reels can build their own collections independently, the strongest Free Spins can create dramatically more winning combinations than the original 729 ways available during normal play. Expanding symbol wins also follow special positioning rules. Once the expansion condition has been met, the selected symbol can pay from the expanded reel positions without relying exclusively on the standard adjacent arrangement used for normal symbols. The stored copies above the reels are then incorporated into future expansions on those same reels, which is why repeatedly hitting the special symbol on already developed reels is particularly valuable. Free Spins can be retriggered by landing at least three additional Book Scatters. Each retrigger awards another 10 Free Spins and the existing expanding symbol collections remain active. There is no stated limit to the number of retriggers, so an extended feature can continue building the individual reel counters rather than resetting the progression every time extra spins are added. Where available, players can purchase the 10 Free Spins feature for 100x the total bet. The purchased bonus follows the standard rules and still chooses the special expanding symbol randomly. There is no guarantee of receiving a premium symbol or developing any particular reel to the maximum collection size. Book of Golden Sands has a maximum RTP configuration of 96.46%, with alternative settings of 95.42% and 94.05%. The commonly published betting range is 0.20 to 100, although limits can vary by operator. The game offers maximum potential of 10,000x, with an estimated probability of approximately 1 in 1,069,518 spins. A reliable theoretical Hit Frequency and natural Bonus Round Frequency have not been publicly disclosed. There is no Megaways engine or progressive jackpot. Its strongest idea is instead the progressive expansion system, which turns repeated hits on the same reels into increasingly large effective symbol stacks throughout the Free Spins round.