V. E. Schwab, #1 New York Times bestselling author of The Invisible Life of Addie LaRue, opens another door to a new fantasy series set in the dazzling world of Shades of Magic. Prepare for tangled schemes and perilous adventures with friends old and new in The Fragile Threads of Power. 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...