Put yourself in the position of special agents and spies. Book Of Series Mission X is a thrilling online slot game developed by Spearhead Studios. The graphics found here is nice and includes cartoon-like icons with interesting details, animated reflector lights in the background as well as a few weapons next to the reels.

Book Of Series Mission X has 5 reels and offers 1024 Ways to Win. This online slot has ten standard symbols – six playing card icons in different colors and four characters (Extreme Hack Harry, Big Tech Terry, One Shot Suzie and Evil Spy Master). The xWays mystery symbol can store two to four identical symbols and will expand the reel to hold up to seven symbols and boost the number of ways to win. You can also find an xNudge wild that appears on the second and fourth reel. It nudges upwards and substitutes all symbols above it. The book itself is a bonus icon. Get three of them on the reels to activate up to 21 Free Spins. One of the standard symbols will be turned into an expanding symbol during free spins.