Storm Warning (The 39 Clues, Book 9)

The end is near! Book 9 of the #1 NY Times Bestselling series.



The shadow of a man in black has followed fourteen-year-old Amy Cahill and her younger brother, Dan, on their worldwide search for 39 Clues that lead to a great power. Amy and Dan know the man in black has tried to kill them. They know he's a Madrigal, the most secretive and terrifying group hunting for the Clues. Amy and Dan have run hard and fast, but they can't escape the man following them. And now, in the wake of a terrible tragedy, he's ready to step out of the darkness for their final confrontation.

• Into the Gauntlet (The 39 Clues, Book 10)
• The Emperor's Code (The 39 Clues, Book 8)
• The Viper's Nest (The 39 Clues, Book 7)
• Vespers Rising (The 39 Clues, Book 11)
• In Too Deep (The 39 Clues, Book 6)
• The Black Circle (The 39 Clues , Book 5)
• Beyond the Grave (The 39 Clues , Book 4)
• The Sword Thief (The 39 Clues, Book 3)
• One False Note (The 39 Clues, Book 2)
• The Medusa Plot (The 39 Clues: Cahills vs. Vespers, Book 1)