locks and keys

When Evan and Cleo sneak into the enchanted library at night they find that Locke has already forced his way into a book, and when they follow they find themselves in a plane that promptly crashes into the Amazon rainforest--and with the help of a boy named Gabriel, (and a friendly sloth) they have to survive the jungle and find the golden statue that is the next treasure in their quest before Locke gets his hands on it.

When Cleo and Evan go undercover to help a rookie detective interview a mansion full of suspects, nothing is as it seems. They must catch the crook -- and find the right key -- or they could be trapped inside this mystery forever...

Fifteen-year-old prep-school student Emil Simon's life is uneventful until he finds a key that unlocks every building on campus and begins to discover truths about his mother's death, missing brother, and emotionally unavailable father.

This time Cleo, Evan, and Ms. Crowley (who, it turns out, is the missing Ms. Hilliard's sister) find themselves in a confusing fantasy book, caught up in a war with wizards, elves, trolls, and the mighty Golden Dragon--and while they manage to find their missing librarian, their quest does not end there.

This time Cleo, Evan, the evil Mr. Locke, and his two trolls have all been transported to the Titanic--and if they do not find and save the priceless jeweled copy of the Rubiyat before the ship hits the iceberg and sinks they may all be lost at sea.

This time Cleo, Evan, the evil Mr. Locke, and his two trolls have all been transported to the Titanic--and if they do not find and save the priceless jeweled copy of the Rubiyat before the ship hits the iceberg and sinks they may all be lost at sea.

"When middle school puzzle-master Sam and history-whiz Martina win a contest for a summer trip across the United States, they soon discover that they've been drafted into something vastly more exciting. Joining Theo, the last descendent of an American icon, they begin an extraordinary adventure across national landmarks and natural wonders, following clues to find seven artifacts left behind by the Founding Fathers. Together, these historical artifacts are keys to unlocking Benjamin Franklin's greatest invention--a powerful secret weapon. Each of the artifacts is hidden and protected with puzzles, riddles, and traps. This has kept the invention safe until now. Gideon Arnold, dangerous descendent of the infamous Benedict Arnold, is on the chase!"--Back cover.

In their third trip through the enchanted library, Cleo and Evan land in "The Werewolf's Curse" where Evan is promptly bitten by a werewolf, and the two need to find the cure--and the next key--before the full moon rises and Evan becomes stuck in this horror story forever.

This time Cleo, Evan, and Ms. Crowley (who, it turns out, is the missing Ms. Hilliard's sister) find themselves in a confusing fantasy book, caught up in a war with wizards, elves, trolls, and the mighty Golden Dragon--and while they manage to find their missing librarian, their quest does not end there.

"When middle school puzzle-master Sam and history-whiz Martina win a contest for a summer trip across the United States, they soon discover that they've been drafted into something vastly more exciting. Joining Theo, the last descendent of an American icon, they begin an extraordinary adventure across national landmarks and natural wonders, following clues to find seven artifacts left behind by the Founding Fathers. Together, these historical artifacts are keys to unlocking Benjamin Franklin's greatest invention--a powerful secret weapon. Each of the artifacts is hidden and protected with puzzles, riddles, and traps. This has kept the invention safe until now. Gideon Arnold, dangerous descendent of the infamous Benedict Arnold, is on the chase!"--Dust jacket.