▁immediately ▁set ▁out ▁with ▁their ▁steam - power ed ▁bar rel ▁boat ▁- ▁and ▁the ▁inn keeper ' s ▁infant ▁son ▁Bab oo ▁as ▁a ▁st ow away ▁- ▁to ▁recover ▁the ▁rich es , ▁but ▁after ▁a ▁few ▁days ▁at ▁sea ▁they ▁are ▁captured ▁by ▁the ▁pir ate ▁crew ▁of ▁Captain ▁Silver ▁and ▁brought ▁to ▁Pir ate ▁Island , ▁where ▁both ▁are ▁sold ▁to ▁a ▁slave ▁merchant . ▁Alert ed ▁by ▁Gran ' s ▁un checked ▁b abb ling , ▁one ▁of ▁the ▁crew , ▁the ▁mon oc led ▁Baron , ▁also ▁ste als ▁the ▁map ▁from ▁Jim ▁in ▁order ▁to ▁gain ▁captain cy ▁over ▁his ▁own ▁ship ▁by ▁present ing ▁it ▁to ▁the ▁pir ates ' ▁council . ▁ ▁In ▁their ▁holding ▁cell , ▁Jim ▁and ▁Gran ▁encounter ▁Kath y , ▁Captain ▁Fl int ' s ▁fe ist y ▁and ▁resol ute ▁grand d augh ter . ▁They ▁manage ▁to ▁escape ▁the ▁cell , ▁and ▁Jim ▁re co vers ▁the ▁map ▁as ▁the ▁assemble d ▁capt ains ▁of ▁Pir ate ▁Island ▁pour ▁over ▁it . ▁Kath y , ▁however , ▁prompt ly ▁ste als ▁it , ▁and ▁having ▁no ▁ship ▁to ▁reach ▁the ▁island , ▁she ▁accepts ▁the ▁Baron ' s ▁offer ▁of ▁transport ation , ▁which ▁is ▁in ▁turn ▁instantly ▁us ur ped ▁by ▁Silver . ▁Silver ▁and ▁his ▁crew ▁try ▁their ▁best ▁to ▁ste al ▁the ▁map ▁back ▁during ▁the ▁voyage , ▁but ▁Kath y ' s ▁dist rust ▁and ▁Jim ' s ▁secret ▁assistance ▁fo il ▁the ▁scheme