The Glowing Heart: A Josefina Mystery (American Girl Mysteries Series)

Josefina's home is filled with holiday guests, including a dashing man from Mexico City who delivers a precious heirloom to Tía Dolores. Everyone is delighted with the stunning ruby ring, but as soon as the ring appears at the rancho, things start going wrong. What is going on? With all her heart, Josefina is determined to find out.