With the power of the Aeternum, Captain Vincent can rewrite history to create his perfect future. As time periods begin crashing into one another under Captain Vincent’s meddling, mass chaos unfolds. Central Park becomes a playground for dinosaurs. The Metropolitan Museum of Art is overrun by the very historical figures it features. And in that mayhem, the Hudsons begin to disappear, one by one, and Matt finds himself increasingly alone. But hope comes from an unexpected source: Jia, the Vermillion rebel and the Hudsons’ ally, has been keeping her own timeline a secret. Only the Hudson kids are able to mend what he broke…and the key is in Matt’s birthplace, Ciudad Perdida, the Lost City of Colombia, where the Hudsons and Captain Vincent face off in the ultimate showdown—a battle for time itself.