The The Threads of Power series - The Fragile Threads of PowerThe Fragile Threads of Power. Set in the Shades of Magic universe, this epic fantasy features familiar characters and setting, introducing a new generation of magic, shadows, and adventure into the much loved world. Once, there were four worlds, nestled like pages in a book, each pulsing with fantastical power, and connected by a single city: London, until the magic grew too fast and forced the worlds to seal the doors between them in a desperate