Sophie and her friends, who call themselves The Red Blazer Girls, embark on solving a case involving mistaken identities, switched paintings, and some priceless family heirlooms.

In an alternate history of New York, three kids try to solve a modern-world puzzle and complete a treasure hunt laid into the streets and buildings of the city.

Ten-year-old Leo's future and the fate of the extraordinary Whippet Hotel, where his father is the maintenance man, are at stake when a series of cryptic boxes leads Leo to hidden floors, strange puzzles, and unexpected alliances.

Puzzle-crazy, twelve-year-old Winston and his ten-year-old sister Katie find themselves involved in a dangerous mystery involving a hidden ring. Puzzles for the reader to solve are included throughout the text.

Simple text asks the readers a series of questions about the characters on each page, and the child must decipher the visual clues to find the answer.

Winston and his friends enter an all-day puzzle contest to win fifty-thousand dollars for their school, but they must also figure out who is trying to keep them from winning. Puzzles for the reader to solve are included throughout the text.

The simple text asks the reader a series of questions about the characters on each page, and the child must seek out the visual clues to answer.

Twelve-year-old Travis is invited to become a member of The Legend, Lauer Middle School's most exclusive secret society, but first he must solve seven puzzles.

Mr. Tweed is back with a brand new adventure, and he needs your help once more! He's come to the zoo to see his favorite ten-piece band perform, but they can't find each other--can you spot them amongst all the other animals? A beautifully illustrated search-and-find book from the wacky imagination of Jim Stoten. Children are encouraged to participate in the hunt for the missing band members, who are cleverly hidden within Stoten's wonderfully whimsical...

Three Chicago students, Melissa, Wilf, and Bondi, are unlikely participants in a competition for a ten thousand-dollar scholarship, unaware that there is much more at stake.