2003, Colorado: Alexandra Solarin is summoned home to her family's ancestral Rocky Mountain hideaway for her mother's birthday. Thirty years ago, her parents, Cat Velis and Alexander Solarin, believed that they had scattered the pieces of the Montglane Service around the world, burying with them the secrets of the power that comes with possessing it. But Alexandra arrives to find that her mother is missing and that a series of strategically placed...

"SHADOW is cooking up a new invention which could put SHINE in a real jam. It's a recipe for disaster! Special Agent EJ12 needs to be patient and keep her eyes peeled. She must get inside the chocolate cake bakery, find out what is going on and stop SHADOW's plan. That's the easy part. As EJ12, Emma Jacks can do anything. So why is the school fund-raiser such a problem? Perhaps it isn't after all..." -- From back cover.

"SHADOW is really making waves and now the coral reef is in hot water. Special Agent EJ12 could be in over her head, but she must stop SHADOW before it is too late. That's the easy part. As EJ12, Emma Jacks can do anything. So why is she so nervous about the school swim meet? Perhaps she isn't after all..." -- From back cover.

"There is a spy at SHINE's top-secret training camp. But who is it? Special Agent EJ12 must not drop the ball. She must find the spy - and the missing invention. That's the easy part. As EJ12, Emma Jacks can do anything. So why is she worried about trying out for the soccer team? Perhaps she isn't after all..." -- From back cover.

An escalating race to find the 39 Clues finds Amy and Dan pursuing a Clue guarded by thousands of the world's best-trained soldiers, an effort that separates them in explosively dangerous ways.

"SHADOW is up to something with the water supply, but what could it possibly have to do with the filming of a new action movie? Special Agent EJ12 needs to keep her eye on the big picture. She needs to infiltrate the movie set and stop SHADOW before it is too late. That's the easy part. As EJ12, Emma Jacks can do anything. So why is she getting worked up over the little things at home? Perhaps she isn't after all..." -- From back cover.

"Are some secrets better left buried? As Amy and Dan track the next clue to a remote corner of the world, they make shocking discoveries about the source of the Cahills' power and the mystery of their parents' deaths. And as the threat of the mysterious Madrigals grows real, one of the clue-hunters makes the ultimate sacrifice. Amy and Dan have to decide how much they're willing to risk, and what they are fighting for. Can they avenge their parents...

Amy and Dan Cahill's quest to find the million dollars takes them to Vienna, where they must outwit their power-hungry relatives as they seek to solve a clue involving Mozart.

Aidan and Sarah Cooper begin to decipher a mysterious coded document that they discovered in a secret compartment of an antique English desk their father recently bought at an auction, and as they become more involved in the piece, which seems to be referring to the story about the origin of Peter Pan, a powerful being begins to pursue them.