▁album ' s ▁Am ory ▁Wars ▁story line , ▁the ▁concept ▁all ▁Co he ed ▁and ▁Camb ria ' s ▁albums ▁follow ▁( with ▁the ▁exception ▁of ▁ 2 0 1 5 ' s ▁The ▁Color ▁Before ▁the ▁Sun ). ▁The ▁book ▁is ▁co - written ▁by ▁San chez ▁and ▁writer ▁Peter ▁David , ▁who ▁worked ▁together ▁on ▁the ▁book ▁which ▁accompanied ▁Co he ed ▁and ▁Camb ria ' s ▁previous ▁album , ▁Year ▁of ▁the ▁Black ▁Rain bow . ▁The ▁double ▁album ▁tells ▁the ▁story ▁of ▁Si ri us ▁Am ory , ▁the ▁names ake ▁of ▁the ▁concept , ▁as ▁he ▁expl ores ▁the ▁energy ▁source ▁holding ▁together ▁the ▁Key work ▁( the ▁ 7 8 ▁world s ▁in ▁which ▁the ▁Am ory ▁Wars ▁is ▁set ) ▁and ▁finds ▁that ▁it ▁is ▁in ▁fact ▁a ▁hor rible ▁after life ▁for ▁depart ed ▁sou ls . ▁The ▁art work ▁for ▁the ▁book ▁was ▁created ▁by ▁He idi ▁T aille fer ▁and ▁Nathan ▁Spo or , ▁and ▁the ▁book ▁provides ▁a ▁" song - by - song " ▁experience ▁for ▁the ▁listener . ▁ ▁The ▁song ▁" The ▁Hard ▁S ell " ▁was ▁released ▁on ▁December ▁ 1 8 , ▁ 2 0 1 2 ▁as ▁part ▁of ▁Gu itar ▁Center ' s ▁F resh ▁C uts ▁Vol . ▁ 8 ▁compilation ▁CD . ▁A ▁ly ric ▁video ▁of ▁the ▁song ▁was ▁later ▁put ▁on ▁the ▁band ' s ▁official ▁YouTube ▁channel . ▁" D ark ▁Side ▁of ▁Me " ▁was ▁later ▁released ▁on