Monocle of Bagthalos The monocle of Bagthalos was a holy artifact of Helm . Worn over one eye , it gave its user magically enhanced eyesight . The " monocle " was crafted by Bagthalos Deszhummer , Archpriest of Helm , in the 1100s DR , and was imbued with his spirit , which could also curse any who wore the " monocle " . Description . The " monocle " consisted of a clear , circular lens of crystal surrounded by an adamantine frame that was studded with six loops . Fastened in these loops were six colorful ribbons , allowing the wearer to securely hold the " monocle " over their eye , even in the face of physical turmoil . Powers . The " monocle " gave its user constant " true seeing " , and caused immunity to gaze attacks and any form of hypnotism , whether magic al or psionic in nature . Three times per day , the monocle - wearer could cast " searing light " . Furthermore , the " monocle " allowed its wearer to " analyze dweomer " at will . Bagthalos ' s spirit , trapped within the relic , whispered regrets , guilt , and sorrow into the wearer ' s mind . A careless user could find themselves magically compelled by the " monocle " to rectify a past wrong . This compulsion was similar to a " geas " or " quest " spell , could not be dispelled , and would cause the relic to not function until fulfilled . History . Bagthalos Deszhummer was an Archpriest of Helm in Zazesspur in the 1100s DR . His order ' s temple , the House of the Steadfast , was beset by constant thefts from the Skeletal Finger thieves guild , and Bagthalos suspected magical invisibility was employed to slip past the temple guardians . To combat this , Bagthalos began fashioning a magical detection device for his guards . When Helm learned of Bagthalos ' s ambition , he gave his Archpriest a stern warning . Helm did not approve , feeling magical aid should not be used in place of vigilance . He warned Bagthalos that continuing his vain research would lead to the death of a being dedicated to Helm . However , Helm did not tell his Archpriest to cease his efforts . Over the years , Bagthalos continued crafting his device , but found himself agonizing over Helm ' s warning . The Archpriest had no desire to prosper at the cost of another , and this guilt gnawed at him whenever he made progress . He eventually fell into obsession , his temple duties shirked , and his body wasting away . On his deathbed in 1141 DR , Bagthalos uttered the final prayers needed to finish his device . However , this also trapped his spirit within the " monocle " , unknown to all . The next year , the temple was robbed again by the Skeletal Finger guild , and the " monocle " was carried off amidst other loot . For many years , the " monocle of Bagthalos " circulated in the black markets of Athkatla and Ithmong , where shady merchants , acting on behalf of the original thieves , offered it for the price of 45 , 000 gp , far below the item ' s true value . No buyers were interested , however , and the " monocle " languished in the Skeletal Finger ' s headquarters in the Small Teeth . Eventually , the mountain stronghold was attacked by the blue dragon Iryklathagra , who drove the thieves away . The blue dragon settled in the stronghold , and the " monocle of Bagthalos " became part of her hoard . Reputation . Since the creator of the " monocle " perished immediately after crafting the artifact , it was virtually unknown . Bagthalos took the secrets of its creation with him to his grave . Appendix . Notes . It is suggested in " Book of Artifacts " that the only way to destroy the " monocle of Bagthalos " is to reunite all the disparate , plane - lost pieces of Bagthalos ' s soul , or to freeze it at the heart of the Abyss .