The Faceless Ones /
by Derek Landy.
- 1st American ed.
- New York : Harper, c2009.
- 422 p. ; 22 cm.
- Skulduggery Pleasant ; [3] .
Fourteen-year-old Valkyrie and the skeleton mage, Skulduggery Pleasant, try to foil a plot set in motion fifty years before to find and open the gate that will allow the Faceless Ones to return to this reality.