First published 2008
Fourteen-year-old Amy Cahill stares at the cryptic musical notation in her hands. She and her younger brother Dan have stumbled into first place in a global treasure hunt for 39 Clues that protect an ancient power. The coded piece of Mozart's sheet music points them toward Vienna, where the next Clue waits to be discovered. But the Cahill siblings aren't alone in this deadly competition. Their own relatives shadow their every move, hungry for the same power that drives Amy and Dan forward. As they navigate the Austrian capital, the children face an impossible question. Each step could bring them closer to ultimate victory or lead them directly into a trap set by their own family. Amy and Dan must decode Mozart's message while staying ahead of enemies who share their blood but not their trust.
Genres: adventure, mystery, contemporary, thriller
Vibes: fast-paced, suspenseful, thought-provoking
Tropes: enemies-to-lovers, found-family
Setting: Austria, Vienna
Period: Contemporary
174 pages · Hardcover · Scholastic Inc.