Product Description An explosive revelation and a familiar face heighten the mystery for Cruz and friends in the sixth book in this adventure-packed series. Still reeling from the life-changing discovery he found buried in the mysterious archive, Cruz Coronado grapples with an important secret as the gang heads to China in search of the second-to-last piece of the cipher. Under the watchful eye of a new adviser, life on the ship returns to almost normal...Almost. Just as things seem to be going smoothly, a familiar face shocks Cruz back into reality, and the final piece in this life-and-death scavenger hunt veers toward a dead end. Explorer Academy features: Gripping fact-based fiction plot that inspires curiosity with new technology and innovations; amazing inventions and gadgets; a cast of diverse, relatable characters; secret clues, codes, and ciphers to track down within the text; vibrant illustrations, Elements of STEAM; National Geographic explorer profiles in The Truth Behind Section. Complete your collection with: The Nebula Secret (1) The Falcon’s Feather (2) The Double Helix (3) The Star Dunes (4) The Tiger’s Nest (5) Explorer Academy Code-Breaking Adventure Explorer Academy Ultimate Activity Challenge Explorer Academy Field Journal Explorer Academy Future Tech About the Author TRUDI TRUEIT has written more than 100 books for young readers, both fiction and nonfiction. Her love of writing began in fourth grade, when she wrote, directed, and starred in her first play. She went on to be a TV news reporter and weather forecaster, but she knew her calling was in writing. Trueit is a gifted storyteller for middle-grade audiences, and her fiction novels include The Sister Solution, Stealing Popular, and the Secrets of a Lab Rat series. Her expertise in kids nonfiction encompasses books on history, weather, wildlife, and earth science. She is the author of all the narratives for the Explorer Academy series, beginning with Explorer Academy: The Nebula Secret. Trueit was born and raised in the Pacific Northwest, and lives in Everett, Washington. SCOTT PLUMBE is an award-winning illustrator, designer, and fine artist whose work appears in books and magazines, games, interpretive centers, private collections, and more. His illustrations have been featured in magazines such as Communication Arts (US), Applied Arts (CA), Creative Review (UK), and 3x3 (US).