▁ 1 9 8 0 , ▁request ing ▁to ▁be ▁appointed ▁trust ee ▁of ▁Hub b ard ' s ▁estate ▁on ▁the ▁grounds ▁that ▁his ▁father ▁was ▁missing ▁or ▁dead . ▁In ▁ 1 9 8 3 , ▁att or ne ys ▁representing ▁Hub b ard ▁produced ▁a ▁letter ▁in ▁Hub b ard ' s ▁hand writing ▁and ▁with ▁his ▁finger print s , ▁in ▁which ▁he ▁wrote ▁that ▁he ▁had ▁not ▁had ▁a ▁leadership ▁role ▁in ▁the ▁Church ▁of ▁Scient ology ▁for ▁" near ly ▁ 1 7 ▁years ", ▁and ▁mentioned ▁his ▁new ▁novel ▁Battle field ▁Earth , ▁his ▁recently ▁released ▁album ▁Space ▁Jazz , ▁and ▁ 1 0 - volume ▁novel ▁Mission ▁Earth . ▁" I ▁am ▁act ively ▁writing , ▁having ▁published ▁Battle field ▁Earth , ▁and ▁my ▁Space ▁Jazz ▁album ; ▁a ▁project ed ▁ten - volume ▁work , ▁Mission ▁Earth , ▁is ▁in ▁the ▁pre - public ation ▁stage ▁at ▁the ▁moment ", ▁said ▁Hub b ard ' s ▁statement . ▁In ▁conj unction ▁with ▁the ▁release ▁of ▁Hub b ard ' s ▁letter , ▁Church ▁of ▁Scient ology ▁President ▁He ber ▁J ent z sch ▁told ▁the ▁press ▁that ▁Hub b ard ▁had ▁produced ▁Space ▁Jazz ▁around ▁December ▁ 1 9 8 2 , ▁and ▁wrote ▁the ▁majority ▁of ▁songs ▁and ▁lyr ics ▁for ▁the ▁computer - based ▁music ▁on ▁the ▁album . ▁ ▁In ▁ 1 9 8 4 , ▁the ▁LP ▁was ▁ret itled ▁to ▁Battle field ▁Earth . ▁According ▁to ▁a ▁ 1