Hardy Boys adventures #3: vanishing game. Franklin. W. Dixon. 2013.

Everyone in Bayport can’t wait for the biggest event of the season: the premiere of G-Force  - the newest ride by the world-renowned Piperate Brothers. Their creation is going to change the fortunes of Funspot, Bayport’s small and recently run-down amusement park, 

Frank and Joe are friends with Daisy Rodriguez, the owner’s daughter, and are first in line for the ride’s launch. Purple lights click off, a huge whoosh emanates from the floor, loud music pulses……

G-Force is awesome and exhilarating from start to finish. But while everyone is screaming their heads off, a young girl disappears into thin air - right in the middle of the ride! The fun has stopped, and now Frank  and Joe have to solve this terrifying vanishing act.