Lunar prepares his allies for an attack from Neptune in this sequel to the New York Times bestselling sci-fi and fantasy mash-up The Last Dragon on Mars, sure to delight fans of Skandar and Eragon!Lunar Jones and the Dread Knights have brought hope to Mars. Between Dread's power and a newly formed alliance with Earth, the once-dying planet is headed for prosperity at last. The only shadow is the one cast by Dav Robinson's warning: Neptune is coming. As predicted, Neptune's ships arrive in Martian space--and they're not interested in talking. The ships launch an immediate attack. Lunar was prepared for hostilities, but the way the attack happens is unexpected. Neptune's dragons seem divided, and its ships, while countless in number, are almost too easy to defeat. It's clear there's more to Neptune's story than meets the eye, and Lunar and his Dread Knights must figure out the mystery behind their looming foe quickly...before those secrets doom Mars for good.