Set in 1790's Covent Garden this is the story of Cat Royal, an orphan who lives at the theatre in Drury Lane. Adopted by the owner after being mysteriously abandoned as a baby on the steps of his infamous establishment, Cat has grown up backstage. When Cat overhears a conversation about a diamond hidden somewhere in the theatre, she's determined to find the treasure. Ably assisted by Pedro, a musician in the company orchestra, she is thrust into a world of drama and intrigue, where she encounters Covent Garden street gangs, boxing matches, theatre riots and spectacular stage productions. En route, she learns a lot about who she is, and who her real friends are …