The ultimate adventurer’s dream! Three ancient editions of the Book of Ra reveal the secret key to El Dorado’s legendary Temple of Gold. BOOK OF RA substitutes for all symbols except the scattered SPECIAL EXPANDING SYMBOL of the feature. 3 or more BOOK OF RA symbols trigger 10 free games. Features triggered with 3, 4 or 5 BOOKS respectively allocate 1, 2 or 3 SPECIAL EXPANDING SYMBOLS that expand to cover all three positions on the respective reels and pay on any position. Free games can be won again during the feature and are played at current bet.