Darker than the first two, "The Faceless Ones" is the best book, so far, in the nine book, three trilogy, Skulduggery Pleasant series.
It's dark from beginning to end in this one, as Skulduggery and Valkyrie try to track down the murderer of four Teleporters. Now fourteen, Valkyrie is having some difficulty with her reflection and a normal teenage life.
Accompanied by some new allies(one in particular than Valkyrie would like to strangle right now) and new villains, this book is exciting,trilling,funny and has one hell of a cliff-hanger.
Recommended for teenagers between 12-15. Ten out of Ten. Brilliant book.