Thunderdog

This energy drink is killer. When a new energy drink causes a rash of violence at their high-school, Miyuki and the Gems are sent to Japan to find out why. The visit forces Miyuki to see her father, now a senior executive of the company that produces Thunderdog. As Miyuki struggles with family, the Gems uncover a dark trail of conspiracy, bigotry, and a diabolical plan that would see most of the great cities of the world burn.

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Book Three of the Gems Young Adult Spy Thriller Series

For ages 13 to adult.