Book of Speed Boost

Name	Item	Effect	Obtained	Notes
Speed Boost 速さの修練		Lvl. 1: Increase Agility by 2% Lvl. 2:  4% Lvl. 3:  6% Lvl. 4:  8% Lvl.  5: 10%	Silent Abandoned Village (Silver/Gold) 2nd floor of Iwao Cave of the Sword Demon (Lvl. 3) Spirit Stone Summons for 600 Killing Stones (Lvl. 5) Farm	3x Speed Boost is a reward for the quest that asks to clear Silent Abandoned Village