内容简介
DetectiveJeffreyBonesandhisgrandpaareattheamusementpark.Theybuylotsofticketsforgames,themerry-go-round,andtherollercoaster.Theyhavegreatfunplayinggames,butwhenitastimetoridethebigcoaster,theydiscovertheirticketsaremissing.Weretheystolen?CanBonessolvethemysteryandfindtheirticketstoride?