Words have power. Just ask Taylor Smart. Her people can shape reality to their whim with a word. But this power comes at a price: a broken oath can tear the Wonder apart. And the Wonder tends to fight back. Two and a half years ago, Taylor promised a favor to spare her friend Jill from the wrath of Mara Hellebore, the Chief Matron of the Winter Court. But now the brooding noblewoman of the daoine sídhe has returned to call in her debt, and the price she asks is more than Taylor is willing to pay. In this heart-pounding conclusion to the Into The Wonder series, Taylor becomes an unwilling accomplice in Mara's twisted plan. Accompanied by a band of supernatural mercenaries, Taylor has no choice but to obey...for now. Still, she's keeping her eyes open for the chance to put her own plans in play and be rid of the House of Hellebore once and for all.