Faerieland. It's like a reflection of your world... a warped reflection. And Jack has just stumbled right into it - with a whole lot of trouble on his tail. Trolls, goblins, ogres and giants ... all after one thing. But Jack's got no clue what. He needs some allies, like now. A wizard maybe. Or a High Fairy. Someone who can do serious magic. Someone who can help him get home. Anyone. Just not a dreamy young boggart named Spiggot... The Knights of Leofwende continues with Mallmoc's Castle and Boggart and Fen

Jack's fought with giants, escaped the clutches of an evil warlock and rescued a damsel in distress, but he's still no closer to finding his way back home. Instead, Jack's caught up in Spiggot's crazy quest to defeat the dreaded Thrum, underworld faeriefolk who are destroying Liofwende's magical forests. If the quest is successful, the King of Northumberland just might help Jack return to the twenty-first century. But if they fail, Spiggot and Jack will be at the mercy of the evil wizard Mallmoc - and that's a fate far, far worse than being stranded in a faerie realm forever.

Mallmoc's towering iron land-ship is cutting a devastating path through Liofwende. Flanked by an army of Ulcugga fairies, the evil warlock appears unstoppable. His only foes are a boy from England, a boggart and a talking rat with a food fixation. Or so he believes. Word has yet to reach his ears of the faerie armies that march to confront him, or of the gnomes devising a cunning scheme to waylay his terrible machine. All Spiggot and Jack must do is buy these allies some time ... but how? Boggart and Fen is the spellbinding conclusion to one of the warmest, most compelling fantasy series of recent years.