Forbidden Gems of Regalia Series
Who would have thought one little shiny trinket would bring so much trouble with it?!
Book One

The Opal Amulet
Fourteen-year-old Emberly Tollens doesn't dream often, but when she does it is never a good sign. Especially when it's the same dream. The voices would get louder, the running faster, and the staff colder. Ice cold.
However this is just he beginning of her troubles. Things get even stranger when she finds a dangerously beautiful opal necklace just lying on the ground at school. Not strange at all.
And definitely not strange when your once kind-of-nice English teacher turns into a fire-breathing creature, right? Now with the help of her hazel-eyed friend name Olive and a cute mysterious fire throwing boy, they're going to discover that there is more going on than what they thought.