▁A ▁supposed ▁arch ae ologist ▁whose ▁area ▁of ▁expert ise ▁is ▁the ▁relation ▁of ▁objects ▁to ▁the ▁tools ▁that ▁were ▁used ▁to ▁make ▁them . ▁In ▁reality , ▁he ▁is ▁sus pected ▁to ▁have ▁st olen ▁several ▁artifact s ▁from ▁the ▁museum s ▁where ▁he ▁had ▁conducted ▁his ▁research . ▁Kil led ▁during ▁the ▁pro log ue ▁for ▁Book ▁ 3 . ▁Jose pha ▁Wal sh ▁– ▁A ▁Space ▁Board ▁pilot ▁who ▁was ▁one ▁of ▁the ▁Free ▁Spirit ' s ▁under lings , ▁discovered ▁by ▁The ▁Commander ▁trying ▁to ▁carry ▁out ▁a ▁mission ▁for ▁them ; ▁she ▁is ▁reform ed ▁by ▁him , ▁and ▁no ▁longer ▁serves ▁them . ▁Pil ots ▁a ▁Space ▁Board ▁ship ▁that ▁trans ports ▁Spart a ▁and ▁Bla ke ▁in ▁one ▁of ▁the ▁books , ▁and ▁later ▁become ▁one ▁of ▁the ▁crew ▁of ▁the ▁expedition ▁to ▁Al mat he a ▁on ▁board ▁the ▁Michael ▁Vent ris . ▁ ▁Howard ▁Fal con ▁– ▁An ▁invent or - p il ot ▁who ▁suff ers ▁a ▁terrible ▁accident ▁while ▁flying ▁an ▁air ship ▁he ▁helped ▁build ▁and ▁dev ise ▁the ▁flight ▁of ; ▁he ▁surv ives , ▁but ▁is ▁turned ▁into ▁a ▁cy borg ▁who ▁can ▁do ▁more ▁incred ible ▁things ▁than ▁before , ▁such ▁as ▁doing ▁a ▁mission ▁into ▁one ▁of ▁the ▁mo ons ▁of ▁Jup iter , ▁a ▁mission ▁that ▁the ▁Free ▁Spirit ▁wants ▁to ▁stop . ▁Brand t ▁Web ster ▁– ▁Deput y ▁Chief ▁of ▁Staff ▁for ▁Pl ans ▁of ▁the ▁Board ▁of ▁Space ▁Control , ▁and ▁a ▁close