The Book of Shadows slot comes with 4 bonus features. 2 are gamble extras with the focus entirely on the Free Spins feature. Here, you can choose to play with 3-5 Shadow Rows and 10, 15 or 20 paylines with an expanding Golden symbol in all. There are also unlimited extra free spins to be won.
Gamble
Whenever you form a winning combination, the optional Gamble feature can be used. You will be given the chance to gamble by picking a red or black card, If you successfully guess the correct colour, the win amount will be doubled. Losing the gamble will see you lose your initial win. You can gamble up 5 times in a row with the gamble amount limited to the amount of £25,000.
Gamble Wheel of Bonus
![Book of Shadows slot Gamble Wheel of Bonus feature screenshot](https://olbgimages.co.uk/image-cache?src=https://olbgimages.co.uk/storage/gallery/slots/book-of-shadows-slot-gamble-wheel-of-bonus-feature-screenshot.png)
There is also a Gamble Wheel of Bonus Gamble feature. This allows you to gamble your winnings in order to win your way into the Free Spins feature. The larger your win, the bigger chance you have of winning entry to the free spins. This feature is available as long as wins don’t exceed 60 times the bet. However, this option is not allowed in the UK.
Free Spins
![Book of Shadows slot Free Spins feature screenshot](https://olbgimages.co.uk/image-cache?src=https://olbgimages.co.uk/storage/gallery/slots/book-of-shadows-slot-free-spins-feature-screenshot.png)
The Book of Shadows slot game is all about the Free Spins feature. It’s triggered by landing 3 or more Book of Shadows Wild/Scatter symbols anywhere during a base game spin.
You then get to choose the number of Shadow Rows you want to play with. The number of free spins awarded will change as a result:
A Golden symbol is randomly chosen before the feature begins. You can reshuffle once to try and get a higher-value symbol. The Golden symbol expands to cover the whole reel when winning combinations are formed. This means you require 3 or more low-value A, K, Q, J or 10 royals to land or 2 or more high-value eyeball, moth, ram skull, purple cat or witch symbols.
Winning Combinations
During the feature, normal winning combinations are paid out first with expanding Golden symbols awarding their win afterwards. Your win potential depends on which symbol is randomly selected to act as the Golden expanding symbol. If you play with 20 paylines and 5 Shadow Rows, a screen full of 10 royals would result in a 200 times bet payout. With the witch symbol, your win would be 10,000 times your total bet. Below is an image depicting what a screen full of the high-value symbols will pay:
![Book of Shadows slot Free Spins feature Golden Symbols Max Win Information](https://olbgimages.co.uk/image-cache?src=https://olbgimages.co.uk/storage/gallery/slots/book-of-shadows-slot-free-spins-feature-golden-symbols-max-win-information.png)
Lastly, 3 or more Book of Shadows Wild/Scatter symbols will result in a retrigger. There are unlimited retriggers available for infinite free spins theoretically.
Nolimit Bonus
Available to non-UK players, there is an optional Nolimit Bonus feature. Essentially a Bonus Buy, you can buy your way into the Free Spins feature. You can opt for 3, 4 or 5 Shadow Rows where you’ll get 10 free spins on each. Below is the cost and the RTP rate which rises: