"Play with fire and you're sure to find danger in a flash!"
— Tagline, from the front cover

Power Play is the 50th book in the Hardy Boys Casefiles series.

Plot summary

Bright Futures Development has announced the invention of a powerful new solar energy cell, and the Hardy boys have gone undercover to protect it from industrial spies. But the action proves too hot to handle: a company employee assigned to the solar cell lab has turned up dead!

Was it an inside job? or was it a rival company out to burn the competition? Frank and Joe follow a trail of deceit and double-dealing and discover that the truth behind the solar power source is much darker than they suspected. Plenty of high-energy action awaits them as they fly straight into a fiery web of danger!


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