It is the summer of 1863, and as the Civil War rages between dinosaur-mounted armies down south, and a tense New York City seems on the brink of exploding into riots, Magdalys Roca and the other children at the Colored Orphan Asylum are trying to survive;but when she receives a letter telling her that her brother Montez was wounded, Magdalys knows that somehow she must reach him--and just possibly her ability to communicate telepathically with dinosaurs...

Magdalys and the squad are flying south on pteroback. South to rescue her older brother. South to war. The squad links up with the dino-mounted troops of the Louisiana Native Guard, an all-black regiment in the Union Army fighting to free their people. They're led by General Sheridan, surrounded by enemy forces in Tennessee and desperate for any edge to sway the tide of battle. Magdalys's burgeoning powers might be the Union's last hope. But she doesn't...

Magdalys Roca and her friends from the Colored Orphan Asylum are heading southwest on the back of Stella, the giant pteranodon, to find Montez, her brother, wounded during the siege of Vicksburg; now they are heading into the heart of the fighting, depending on Magdalys's ability to communicate telepathically with dinosaurs--but one of the companions is not quite what she seems, and Magdalys's talent could make her a target for both sides.