When several children go missing in a small English hamlet, the Dead Boy Detectives are on the case.
A series of strange and unexpected twists take them to Free Country, a place that dates back a millenia, where children never grow old and are free from the abuse and tyranny of adults. But Free Country is failing and what it needs is the strength of five innately powerful children - one of whom is the sorcerer Timothy Hunter - to restore their uncanny world to what it once was.
For Charles Rowland and Edwin Paine, every day's a holiday. They spend their time reading detective stories, watching thrillers at the movies or just hanging out in their sweet treehouse hideout. You might say they're living the life of every kid's dream, if it weren't for one small problem - they're not alive at all!
Best friends from beyond the grave, these two ghosts have decided to live (so to speak) out their dreams and begin solving crimes themselves. But when they take on their first murder case, Charles and Edwin find out that truth is stranger - and more dangerous - than fiction.
An immortal madman is killing the runaway children of London, and not even the city's spirits are safe. Can the Dead Boy Detectives solve the case, or will a fate worse than death make them give up the ghost for good?