Stewart, Trenton Lee

After passing a series of mind-bending tests, four children are selected for a secret mission that requires them to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules.

A collection of puzzles, riddles, and brainteasers.

"With the Ten Men on the loose and a telepathic enemy tracking them, Kate, Reynie, Sticky, and Constance must join with a new Society member to keep their world safe"--Provided by publisher.

"'Are you a gifted child looking for special opportunities?' When this peculiar ad appears in the newspaper, dozens of children enroll to take a series of mysterious, mind-bending tests. (And you, dear reader, can test your wits right alongside them.) But in the end just four very special children will succeed. Their challenge: to go on a secret mission that only the most intelligent and resourceful children could complete. To accomplish it they will have to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules. As our heroes face physical and mental trials beyond their wildest imaginations, they have no choice but to turn to each other for support. But with their newfound friendship at stake, will they be able to pass the most important test of all?"--Amazon.com.

Reynie, Kate, Sticky, and Constance investigate when an unexplained blackout engulfs Stonetown.

"When twelve-year-old Reuben finds a peculiar, magical watch that has the power to turn its wearer invisible, he's propelled on the adventure of a lifetime"--Provided by publisher.

When Reuben discovers an extraordinary antique watch, he soon learns it has a secret power and his life takes an intriguing turn. At first he is thrilled with his new treasure, but as one secret leads to another, Reuben finds himself torn between his innately honest nature and the lure to be a hero.

Reynie, Kate, Sticky, and Constance, all graduates of the Learning Institute for the Very Enlightened and members of the Benedict Society, embark on a scavenger hunt that turns into a desperate search for the missing Mr. Benedict.