Tar ' Ael Veluuthra Tar ’ Ael Veluuthra , or Whetstone of the Blade or Whetstone of the Victorious Blade , was a spellbook containing some spell s designed for members of the Eldreth Veluuthra and also allowed crafting " humanbane " arrows for those with normally insufficient skill . Description . The entire book had a bend that looked as though it could and was carried around in a scroll tube . The book ’ s cover was made from a single silverbark tree leaf folded in half along its central vine . The front cover spelled its name . The pages were made from beaten plant mush and were sewn together with vine . The book was written in delicate elven letters and started with the sentence : " May we drive the cursed vermin from our blessed land , may they despoil it no longer with their sweat , axes , and blood . " Contents . The book contained spells , that helped the spellcaster to navigate , spy , hide and relay information , namely : While the content was certainly useful , the book ’ s true value didn ’ t lie in the spells it contained but in its back cover . A spellcaster gained the ability to craft " humanbane arrows " after following through the following steps : 1 . kill a human 2 . drop the blood from the killed human ’ s heart before 10 min passed after death 3 . the blood formed a magical formula in elven letters 4 . the formula described how to create the magical arrows The formulas magic was useful for 8 hours during which the arrows must be crafted . users needed to provide the material for the crafting process by themselves , the only thing the book ’ s formula and human blood substituted were the users ’ lack of skill to create them by themselves . The formula couldn ’ t be copied to be used later because the blood of a human was different from individual to individual . The crafting formula itself allowed only the crafting of six arrows and interestingly , it only allowed modifying existing mundane arrows into magical arrows . Adding the " humanbane " characteristics to an existing magical arrow was impossible . Value . The " Tar ’ Ael Veluuthra " could be sold like any other magic book , but its monetary value depended on whether the potential buyer knew about its book cover ’ s magic . Those who knew and had a need for the grisly magic were even willing to pay about three times the value of the book ’ s content in spells , those who didn ’ t have the need or were of morally higher calling didn ’ t buy it at all or paid to keep the book out of circulation . History . The " Tar ’ Ael Veluuthra " earliest recorded sighting was in 1345 DR , but it wasn ’ t known when and who did create it . What was known about the creator ’ s identity was that it was an elven wizard , who was also a member of the Eldreth Veluuthra , and its purpose , teaching other members useful spells in stealth and providing means to kill humans . It was suspected that the book was duplicated several times , but neither had anybody an idea how often nor was anybody able to confirm this information . The last known owner of the original was the fey ' ri Threlya Dlardrageth , last seen shortly before the phaerimm s ’ attack on Evereska . A rather naive woman , a member of the Eldreth Veluuthra mistook her awkwardness with uneasiness at being around many humans and introduced her to a fellow wizard for tutorship in magic . This wizard borrowed her the " Tar ' Ael Veluuthra " , but misfortune didn ’ t allow her to give it back .