Spirit, Burke, Muirin, Loch, and Addie, desperate to stop the Shadow Knights from turning the students of Oakhurst Academy into soldiers wielding both weapons and magic, send Muirin to infiltrate the group but soon Spirit is questioning who can--and cannot--be trusted.

Sarah Jane has come to Isabelle Harton's school in London, a happy child with unusual gifts, but will Isabelle be able to keep her safe from a powerful intent to harm her?

This trio of urban fantasy novels features the first new Diana Tregarde story in nearly 20 years, the first Jennie Talldeer story in more than 15 years, and introduces a new heroine for the 21st century.