19th November 2014
The ninth Hardy Boys adventure is the most violent so far in my re-read of the series, and this the updated 1965 edition that's meant to have removed less desirable content. As is typical, the boys are called in by their father to help out on a case, going undercover at a local factory to investigate platinum thefts, but things soon spiral into something much larger.
As plots go, this has been one of the least plausible of the series this far - the boys are constantly travelling both by plane and helicopter and it stretches my imagination when it fails to mention how this is funded. The boys seem to be brought in for something that the police could definitely have dealt with, and the combination of mysteries becomes overly coincidental.
Overall I felt a bit disappointed by this book, and if you're looking for a single book in the series (rather than being a completionist like me) then I'd suggest you give this one a miss.