When the evil Baron Vengeous escapes from prison, Detective Skulduggery Pleasant and his apprentice, Valkyrie Cain, have just two days to recapture him or the Baron's creature, the Grotesquery, may summon the Faceless Ones back to their world.

"He's dead. She's still in high school. But together they're going to save the world. Skulduggery is gone, sucked into a parallel dimension. There is no official plan to save him. But Valkyrie's never had much time for plans..."--

The Necromancers no longer need Valkyrie to be their Death Bringer, and that's a good thing. The catch? They don't need her any more because they've found their Death Bringer already, the person who will dissolve the doors between life and death. And that's a very, very bad thing ...

War has finally come. But it's not a war between good and evil, or light and dark--it's a war between Sanctuaries. For too long, the Irish Sanctuary has teetered on the brink of world-ending disaster, and the other Sanctuaries around the world have had enough. Allies turn to enemies, friends turn to foes, and Skulduggery and Valkyrie must team up with the rest of the Dead Men if they're going to have any chance at all of maintaining the balance of...

"The skeleton detective is coming back to life... again! It's the tenth, triumphant novel in the Skulduggery Pleasant series, and it will rearrange your world. A lot has changed. Roarhaven is now a magical city, where sorcerers can live openly. Valkyrie Cain has been out of action for years, recovering from the war against her alter-ego Darquesse, which nearly destroyed her and everyone else. Some things never change though: bad people still want...

While Valkyrie is off trying to recover her sister's lost soul, it is up to Omen Darkly to be the hero and save thousands of innocent people.

"Billions of lives will be wiped away in a final, desperate search for the Child of the Faceless Ones -- she who is destined to bring about the return of humankind's ancient overlords. To prevent this, Skulduggery Pleasant and Valkyrie Cain have one last - terrible - option: the assassination of Damocles Creed. With protests stirring in the magical city of Roarhaven, with riots and revolutions on the horizon, Valkyrie must decide who she wants to...

As the war with Mevolent rages on, the Dead Men are dispatched to a walled town in the Tuscan hills - not to assassinate the Lord of the Dark Sorcerers, but to save him. A rift has opened to a hellish dimension where a being of devastating power awaits, and only Mevolent is strong enough to seal it and save the world. A simple mission, then, which turns ever-so-slightly trickier when Skulduggery is presented with the opportunity to finally get revenge...