SuitabookCuriosity and investigation
Frank and Joe investigate a sinkhole and a missing historic statue, following the mystery into tunnels and an abandoned underground city.
Loading your next page
Book details
Leslie McFarlane - Author
A fast-moving Hardy Boys mystery combines exploration, investigation and danger. Frank and Joe follow the mystery of a swallowed statue into tunnels and an abandoned underground city, where a criminal group threatens Bayport.
Book Brief
Sign in to see how this book fits your child and family preferences.
Sign in for personalised guidanceA fast-moving Hardy Boys mystery combines exploration, investigation and danger. Frank and Joe follow the mystery of a swallowed statue into tunnels and an abandoned underground city, where a criminal group threatens Bayport.
Frank and Joe investigate a sinkhole and a missing historic statue, following the mystery into tunnels and an abandoned underground city.
An abandoned underground city is occupied by a cultish band of criminals who plan to take over Bayport.
The adventure includes a sinkhole, dangerous tunnels, a boulder, a runaway train and criminals.
This is a grounded book brief while Suitabook strengthens the analysis: another book-specific source is still needed; some draft conclusions still depend on unresolved evidence.
Anything not established here remains open; it is not being treated as absent or safe.