Search

"While attending an amusement park under the new ownership of their friend Daisy, Joe and Frank investigate the disappearance of a patron who was last seen riding a hit attraction, an event that has threatened Daisy's family's livelihood"--OCLC.

When one of the Hardy Boys disappears while on a campout, the other is left behind to search, hoping he will see his brother alive again.

Frank and Joe investigate the disappearance of eight children from Misty Falls State Park in Idaho over the last twelve years after one of the missing children reappears with no memory of anything that happened previously.

"When the daughter of Bayport's amusement park owner goes missing, Joe and Frank follow clues to find the girl and determine if her disappearance is related to that of another missing person"--OCLC.

Camping on Black Bear Mountain, Frank, Joe, and the conservation club wake up to find a bear roaming the campsite and their teacher missing.