Echoes of the Lost Realm (en Inglés) - Gregory Parrott

The quest to return home leads deeper into a realm brimming with ancient magic and a complex history. The silver locket is no longer just a key; it is a relic of a time when two worlds were deeply intertwined. As the protagonist meets wise treants and mischievous sprites, they discover that they, too, may possess a latent ability to communicate with the magic of this world. But a shadowy entity watches from the darkness, viewing the locket as a prize to be seized-and the path home will require more than just opening a door.