' t ▁yet ▁multip lied ▁to ▁populations ▁where ▁there ▁are ▁enough ▁to ▁trade ). ▁ ▁L anna ▁finds ▁out ▁that ▁they ▁also ▁have ▁to ▁deal ▁with ▁Or lo , ▁who ▁has ▁been ▁leading ▁a ▁reb elli ous ▁tribe ▁of ▁children ▁and ▁te en agers ▁that ▁has ▁broken ▁away ▁from ▁the ▁rest ▁of ▁High ▁Har bor . ▁ ▁Te acher , ▁in ▁the ▁gu ise ▁of ▁P atch , ▁is ▁still ▁an ▁app rent ice ▁citiz en ▁despite ▁having ▁been ▁in ▁Indust ria ▁for ▁years , ▁because ▁he ▁lik es ▁where ▁he ▁is : ▁in ▁a ▁boat ▁shop , ▁building ▁boats . ▁No ▁one ▁else ▁in ▁Indust ria ▁knows ▁how ▁to ▁build ▁them — the ▁city ▁wasn ' t ▁even ▁on ▁the ▁coast ▁before ▁the ▁Change . ▁ ▁But ▁Te acher ▁has ▁been ▁planning ▁to ▁leave , ▁and ▁now ▁that ▁Con an ▁is ▁here , ▁Te acher ▁can ▁put ▁those ▁plans ▁into ▁motion . ▁ ▁S ick ness ▁breaks ▁out ▁at ▁High ▁Har bor , ▁and ▁Dy ce ▁is ▁the ▁only ▁one ▁who ▁has ▁any ▁medic ines . ▁ ▁L anna ▁disco vers ▁that ▁not ▁only ▁is ▁Or lo ▁trying ▁to ▁take ▁over ▁High ▁Har bor , ▁he ' s ▁making ▁de als ▁with ▁Dy ce . ▁Te acher ▁disco vers ▁that ▁there ' s ▁going ▁to ▁be ▁another ▁earth qu ake , ▁and ▁this ▁one ▁will ▁drop ▁half ▁of ▁what ▁remains ▁of ▁Indust ria ▁into ▁the ▁sea . ▁ ▁His ▁human itar ian ▁nature ▁forces ▁him ▁to ▁go ▁to ▁the ▁Council ▁and ▁tell