Detailed Explanation
In the Book of Dead free spins round, one symbol is randomly selected to become the expanding symbol, with equal probability across all standard symbols (excluding the Book), though no official breakdown by type exists—high-value symbols like Rich Wilde or Pharaoh offer the biggest payouts when chosen.
The free spins trigger with 3+ Book scatters, awarding 10 spins initially. Before starting, the game picks a random symbol that expands to cover entire reels if it lands, potentially filling 2-5 reels for massive wins up to 5,000x your bet. Retriggers with 3+ Books add another 10 spins, keeping the same expanding symbol and allowing unlimited extensions.
High-paying symbols (Rich Wilde, Pharaoh, Anubis, Osiris) are ideal as expanders, as landing just 2-3 can yield 1,000x+ payouts, while low-paying card royals (10-A) expand less profitably. The round hits roughly every 150 spins due to high volatility.
Practical tips: Bet higher during bonus hunts for bigger multipliers, but manage bankroll for dry spells. Avoid overusing the Gamble feature post-win—stick to color guesses for 50% odds. Play max lines to maximize expanding symbol coverage, and chase retriggers for epic sessions.