From the bestselling Skulduggery Pleasant Universe, written by Derek Landy.
Romeo Gideon is finally interviewed, and painful truths are brought, kicking and screaming and sobbing a little, to the surface. But before the last, missing details can be slotted into place, before the mystery can be finally solved, Skulduggery and Valkyrie have to deal with a killer on the loose and a tortured ghost with revenge on her mind...