Samphire, Patrick. Secrets of the dragon tomb series #bk. 2

A missing Martian. A sinister plot. A Napoleonic spy... Boundless adventures await in Book 2 of The Secrets of the Dragon Tomb middle grade sci-fi series! If Edward thought life was going to be easy in Lunae City, he was very, very wrong. The moment he intercepts a thief escaping from Lady Harleston's town house, he is caught in a terrible scheme that threatens all of Mars. Soon he's fighting off vicious sea serpents, battling a small army of heavily armored thugs, and trying to unpick an impossible mystery. Edward doesn't know whom he can trust. Will he make the right choice? Or will his family-and his entire planet-fall victim to the treacherous Emperor of Mars?

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