Tome of Forgetfulness (or TOF for short) is a book that after read resets one point of the respective skill (Note that the skill must be level 1; that is, not M, G or P, in order to take effect), e.g: Berserk Tome of Forgetfulness resets one point of the Berserk skill if i am an Arahan . TOF's are often used to reset one point and put it back in the same skill when it is not mastered at 17 points. It's also used when the user changes his/her mind about mastering a skill. It can be gotten by buying/trading with other players or can drop from metins such as Metin of Murder (lvl 70 metin) or Liquiron (lvl 85 metin)