In 1859 when Rory disguises herself as a boy in order to work in a coal mine in St. Claire, Pennsylvania, she and her friend struggle to survive a cave-in disaster.
With Moonsilver the unicorn disguised in armor, young Heart Avamir, searching for her Gypsy friends, attempts to travel unnoticed through the crowds gathered for the crowning of a new lord.
Bonita is used to spending the day carrying her elegant mistress to fiestas and being cared for in a safe, snug barn, but when shots are fired at the Alamo, Bonita's perfect life at the ranch is gone forever.
Zellie faces a difficult decision that could cost her a job when her boss, the owner of a boarding house for the girls employed in the textile mills of Lowell, Massachusetts, asks her to spy on the young workers.
Sierra, a feisty filly born into a herd of free horses on the plains of the untamed American West, finds her place in the herd tested when a new stallion steps up and becomes the new leader.