"Welcome to Stately Academy, a school which is just crawling with mysteries to be solved! The founder of the school left many clues and puzzles to challenge his enterprising students. Using their wits and their growing prowess with coding, Hopper and her friend Eni are going to solve the mystery of Stately Academy no matter what it takes!" --

When ten-year-olds Shirley and Jamila meet, Jamila is simply hoping for a friend in her new neighborhood but Shirley is a detective and together they seek a missing gecko.

What will the Aldens discover on a vacation to a beautiful island in the South Seas? The island is supposed to be deserted, but as the Aldens explore, they start to find signs that they suggest they are not alone.

The third book in the Secret Coders series from Gene Luen Yang and Mike Holmes.
Stately Academy is no ordinary school: it was once home to an elite institute where teachers, students, and robots worked together to unravel the mysteries of coding. Hopper, Eni, and Josh won't rest until they've learned the whole story, but they aren't the only ones interested in the school's past. Principal Dean is hot on their trail, demanding that the coders

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A puzzle left behind by Sifu Faiza's grandfather has everyone stumped. A circle divided into wedges shows part of the formula for an ancient medicine. But some of the wedges are blank, and no one knows how or why the original formula disappeared! Joy, Adam, Amy, and Sam will have to use clues—and fractions—to discover the truth about . . . The Ancient Formula.

On a rare day of rest and relaxation, Nancy and her friends Bess and George stumble upon a decades-old treasure. When she tries to discover the location of the rightful owner, Nancy finds more trouble than she bargained for.

Geronimo and his friends travel back in time to the first modern Olympic Games in 1896 to keep the pirate cats from ruining the Games.

There isn't a mystery that Shelby & Watts can't solve! They're saving the environment, one case at a time.
Meet Shelby & Watts! Shelby loves a good mystery. And her best friend, Watts, is never without his encyclopedia.
When Shelby gets a letter from Fred the hermit crab claiming that all the shells are missing from the beach, she and Watts are just the duo to help him. With Shelby's deductive skills and Watts's scientific knowledge,...

The #1 New York Times bestselling author Marieke Nijkamp and artist Manuel Preitano unveil a graphic novel that explores the dark corridors of Barbara Gordon's first mystery: herself. After a gunshot leaves her paralyzed below the waist, Barbara Gordon must undergo physical and mental rehabilitation at Arkham Center for Independence. She must adapt to a new normal, but she cannot shake the feeling that something is dangerously amiss. Strange sounds...

Bobby Pendragon is a seemingly normal fourteen-year-old boy. He has a family, a home, and even Marley, his beloved dog. But there is something very special about Bobby. He is going to save the world. ... Before he can object, he is swept off to an alternate dimension known as Denduron, a territory inhabited by strange beings, ruled by a magical tyrant, and plagued by dangerous revolution.