Ruby Halliday and Scarlett Jones frantically search for a purple opal - which longer exists. The jewel is needed as part of a cure for a mysterious disease which makes people glow in sunlight. They are unaware that they are being watched by an old enemy who is bitterly determined to take revenge upon Scarlett. For readers age 11 and over.
Ros Haywood is a technical publications librarian who lives and works in the Southwest of England and enjoys tracing her family tree. She also loves reading, reading, and more reading, and is the author of Blue Ruby and Scarlet Diamond (the first two books in the Gemstone Girls series), about the adventures of Ruby and Scarlett. Ros regularly takes part in the annual madness which is NaNoWriMo (writing a novel in a month), and started by drafting Star Trek novels Synchronicity and Guardian Angel.