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.