Solter, Doug. Gems spy series #bk. 1

Can she bring these girls together? When she discovers her father's plane crash wasn't an accident, sixteen-year-old Emma wants to punish those responsible. Even if it means becoming a spy for a mysterious organization known as The Authority. They want Emma to join the Gems...four young women who know how to handle themselves in dangerous situations. Like sneaking into a mountain stronghold to stop terrorists from incinerating the world's food supply. The Authority thinks Emma is the missing link to make this team work. Emma thinks The Authority is her only chance for revenge

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