ru ci ans . ▁Le ary ' s ▁" The ▁Second ▁C rypt ographic ▁Shakespeare ", ▁published ▁in ▁ 1 9 9 0 , ▁identified ▁ci ph ers ▁in ▁Shakespeare ' s ▁plays ▁and ▁po ems ▁which ▁pointed ▁to ▁Ba con ' s ▁author ship . ▁Author ▁and ▁research er ▁Mark ▁Finn an ▁elabor ated ▁on ▁Le ary ' s ▁Oak ▁Island ▁theory , ▁which ▁was ▁also ▁used ▁in ▁the ▁Norwegian ▁book ▁Organ isten ▁( The ▁Seven ▁Ste ps ▁to ▁Mer cy ) ▁by ▁Er l end ▁Lo e ▁and ▁Pet ter ▁Am und sen ▁and ▁the ▁TV ▁series ▁S weet ▁Sw an ▁of ▁Av on . ▁ ▁Mason ic ▁and ▁other ▁artifact s ▁In ▁his ▁book , ▁Oak ▁Island ▁Sec rets , ▁Mark ▁Finn an ▁noted ▁that ▁many ▁Mason ic ▁mark ings ▁were ▁found ▁on ▁Oak ▁Island , ▁and ▁the ▁sh aft ▁( or ▁pit ) ▁and ▁its ▁myster ious ▁contents ▁seemed ▁to ▁rep licate ▁aspects ▁of ▁a ▁Mason ic ▁init iation ▁r ite ▁involving ▁a ▁hidden ▁v ault ▁with ▁a ▁sacred ▁tre asure . ▁Joe ▁Nick ell ▁ident ifies ▁par alle ls ▁between ▁Oak ▁Island ▁accounts , ▁the ▁" Secret ▁V ault " ▁alleg ory ▁in ▁York ▁R ite ▁Fre em ason ry ▁and ▁the ▁Ch ase ▁V ault ▁on ▁Barb ados . ▁Fre em ason ▁Dennis ▁King ▁exam ines ▁the ▁Mason ic ▁aspects ▁of ▁the ▁Oak ▁Island ▁legend ▁in ▁his ▁article , ▁" The ▁Oak ▁Island ▁Leg end : ▁The ▁Mason ic ▁Ang le ". ▁Steven ▁S ora ▁spec ulated