Book of the Priestess Bonus Buy

Book of the Priestess Bonus Buy by Evoplay features a 5-reel slot set in an ancient Aztec temple, where players seek a magical book to trigger free spins. Three or more scatter symbols, which also act as wilds, award 10 free spins, with one regular symbol randomly selected to expand across three positions on each reel, forming wins even on non-adjacent reels. The standout Ancient Mask feature activates during free spins: each scatter landed advances a progress bar by one, counting down from 7 to 0. Upon reaching zero, players gain an additional expanding symbol and 5 extra free spins, resetting the counter, with potential for up to 9 expanding symbols total. The Bonus Buy option allows direct purchase of free spins. Visuals depict Aztec lore with priestess characters, mystical relics, temple walls, and hieroglyphs, paired with immersive sound effects. High volatility suits risk-tolerant players pursuing the maximum win around 6000x-6218x, with RTP at 96.15%. This builds on the classic 'Book of' mechanic by stacking multiple expanding symbols via scatter collection, differentiating it from standard versions.

Gameplay: Players select this high-volatility slot for its potential up to 6218x stake through expanding symbols in free spins. The Ancient Mask feature offers repeated extensions by collecting scatters, elevating win chances beyond typical Book of slots.

Special Feature: The Ancient Mask progress bar collects scatters during free spins to grant up to 9 expanding symbols and extra spins, stacking expansions for massive win potential.