From the #1 New York Times bestselling author of Lore and The Darkest Minds trilogy comes the
high-stakes YA fantasy of the year! With a tenacious heroine deep roots in Arthurian legend
and a breathless chase from Boston to Cornwall to mythical Avalon this book is pure
adrenaline. Seventeen-year-old Tamsin and her brother Cabell are treasure hunters. Abandoned
by their guardian as children they seek legendary relics from the vaults and tombs of dark
sorceresses. But if they can't find the magic to break the wicked curse on Cabell it will soon
erase every last trace of his humanity. When Tamsin learns her guardian disappeared with a
ring capable of breaking any enchantment they know they must find him before their rivals
including the charming Emrys who has a secret of his own. The search leads them across
modern-day England into Avalon but the misty otherland is nothing like legends claim and its
deadly surprises force Tamsin and her brother into an uneasy alliance with Emrys and an
apprentice sorceress just to survive. As the mystery rotting the heart of Avalon consumes them
and they come no closer to finding the ring Tamsin begins to fear she won't just lose her
brother - she'll lose her one chance to uncover the secret of who she truly is. For fans of
Holly Black Cassandra Clare and Legendborn.