Grand Theft Sonic: The Mysterious Emeralds

Emerald Zone is an anime series created by Sarah West, with the help of JessicaFin23 and Sonic879.

Synopsis
A girl named Katrina discovers a magical emerald that gives her access to a mysterious place known as the Emerald Zone, which is full of paranormal forces and supernatural creatures. Katrina has wacky adventures while she solves the Emerald Zone's mysteries.