When a mysterious fire ravages the Everfree Forest, the Apple family asks Twilight Sparkle to investigate. Twilight returns to the library to find an equally mysterious spell book from her 'secret admirer'. But the book lights more than the fires of passion. Twilight dreams of pyromania and the closer she gets to closing the case, the further her mind unravels. What dark secrets does her admirer have in store for her? Will this be the final chapter for Element of Magic?