Scarlet Diamond

The second book in the YA/children's book series.

Ruby Halliday meets Scarlett Jones at boarding school. They travel to Africa to spend Christmas with Scarlett’s interesting archaeologist parents, and meet someone on the way who gives Scarlett a quest to find a red diamond, stolen by the Aztec Queen of the Underworld. The girls find the Temple of the Lost Souls, complete with both comedy and sinister vampires, glowing stalagmites, and the mysterious queen.

Back at school, Ruby and Scarlett are shocked when the Aztec Queen returns to look for the diamond, and then they find that new girl Emerald Black is not all she seems.

Now the magic really begins...