The Steamland Chronicles

Isabel, in her 30s and part of the Avalor Science Academy, has invented many devices that either run on steam or use it an efficient manner, instead of using coal or oil. In the process, she works with assistants like Lucia, her daughter, and others from across Avalor. She even was working on a horseless carriage and knew that steam power could revolutionize the lives of those in Everrealm's 140 kingdoms, including those in Avalor. One day, Isabel stumbles upon a rip in the fabric of space-time, and she visits a country completely powered by steam, which is technologically advanced beyond her wildest dreams. She soon returns to Avalor, informing her sister, Queen Elena, and her partner, Naomi, who she had been married to for the past 18 years, of the discovery. Elena immediately convenes an emergency Grand Council meeting, hoping to reach a consensus of what to do next, since she knows that the mysterious kingdom could hold the key to moving Avalor into the industrial age, despite the fact that anyone who travels through the dimensional drift could be trapped in strange country forever, with no way of returning to Avalor. What happens next is up to Elena, Naomi, Isa, and the decision of the council...