The Dragon Lords : Slayers bk.4
(Book)

Work self-published by author using CreateSpace.

A spy's life is never safe.Tori knew that sending Aaron to Overdrake to act as a mole would have its risks. Overdrake might find out the truth about Aaron's intentions--or even worse, convince Aaron that his revolution is necessary. The rest of the Slayers are less than enthusiastic about Tori and Aaron's decision. If Aaron switches sides, they'll have to contend with three dragons during an attack--odds that will certainly doom them. Tori, however, is positive they can trust Aaron. Trusting Dirk is another matter. He's still convinced that if he shows Tori what dragons are truly like, he'll trigger her dragon lord side. And he's not wrong. Tori knows that learning how to control dragons may be the key to saving her friends, but the more time she spends with them, the more she wants to save them, not kill them. When the next face-off comes, choosing sides isn't as easy as it used to be.