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Incoming Resources
- The falcon's feather, Trudi Trueit
- William Wenton and the lost city, Bobbie Peers ; translated from the Norwegian by Tara Chace
- Salem's cipher, Jess Lourey
- Code talker, a novel about the Navajo Marines of World War Two, by Joseph Bruchac
- The final treasure, by Dori Hillestad Butler ; illustrated by Tim Budgen
- The final gambit, Jennifer Lynn Barnes
- The shadow cipher, Laura Ruby
- The unbreakable code, Jennifer Chambliss Bertman ; with illustrations by Sarah Watts
- The book of lost names, Kristin Harmel
- The secret of Red Gate Farm, by Carolyn Keene
- The dead of night, Peter Lerangis
- The emperor's code, Gordon Korman
- The explorer's code, Allison K. Hymas
- The lost symbol, a novel, Dan Brown
- The book of lost names, Kristin Harmel
- Origin, a novel, Dan Brown
- The black book of buried secrets, [written by Mallory Kass] ; introduction by Rick Riordan
- A desperate fortune, Susanna Kearsley
- All the devils are here, Louise Penny
- The Fellowship of Puzzlemakers, a novel, Samuel Burr
- The eye of God, James Rollins
- The black circle, Patrick Carman
- A king's ransom, Jude Watson
- The brothers Hawthorne, Jennifer Lynn Barnes
- The lost symbol, a novel, Dan Brown
- The hidden room, by Dori Hillestad Butler ; illustrated by Tim Budgen
- Into the gauntlet, Margaret Peterson Haddix
- The traitor's blade, by Kevin Sands
- From Texas with love, by Dan Gutman
- The map of stars, Laura Ruby
- The Hawthorne legacy, Jennifer Lynn Barnes
- Vespers rising, Rick Riordan ... [and others]
- Charlie Thorne and the Royal Society, Stuart Gibbs
- Beyond the grave, Jude Watson
- The Metropolitans, Carol Goodman
- The debutante's code, Erica Vetsch
- The midnight ride, a thriller, Ben Mezrich
- King & Kayla and the case of the secret code, written by Dori Hillestad Butler ; illustrated by Nancy Meyers
- Operation Trinity, Clifford Riley
- The dragon's blood, Trudi Trueit
- The Jefferson key, a novel, Steve Berry
- The Da Vinci code, Dan Brown
- Origin, a novel, Dan Brown
- The book that proves time travel happens, a novel by Henry Clark ; interior illustrations by Terry Fan and Eric Fan
- William Wenton and the impossible puzzle, Bobbie Peers ; translated from the Norwegian by Tara Chace
- The doomsday key, a [upper case Greek letter "sigma"] sigma force novel, James Rollins
- Shatterproof, Roland Smith
- The sword thief, Peter Lerangis
- The forbidden island, Trudi Trueit
- Unstoppable, Jude Watson, Book 1