When Ethan and Ella first land in Venice, they are in awe of all the canals and tiny little streets. They’re especially excited to look for a 500-year-old-mosaic near Calle Farnese that Grandpa Harry tells them about. While the twins are out getting gelato later that day, they notice someone looking around suspiciously as he unties a gondola from a dock.

How did Joe, Fred, and Sam end up in King Arthur's court? It all started with The Book, a present from Joe's magician uncle. One minute they were looking at pictures of knights in The Book - and the next minute they are knights, battling fire-breathing dragons and gross-smelling giants! Can the Time Warp Trio escape death and destruction - and make it back to the twentieth century in time for lunch?

In Dinosaurs Before Dark, adventure is waiting to happen! Jack and his younger sister, Annie, stumble upon a tree house filled with books. Where did the tree house come from? How long has it been there? When Jack reads a book about the Cretaceous period, 65 million years ago, and wishes he could really see the pteranodon, it suddenly appears at his window. Magically. Before Jack and Annie can figure out the mystery, the tree house whisks them back to the prehistoric past.

Follow the adventures of Zoey and her cat, Sassafras, with this collection of books one to six in the series. Each story features a new magical animal with a problem that must be solved using science. There isn’t a set formula for each book; Zoey sometimes needs to run experiments, while other times she needs to investigate a mystery, and yet other times she needs to do research. Zoey models how to keep a science journal through her handwritten entries in each story.

No mystery is too great for super-sleuth Cam Jansen and her amazing photographic memory! Can Cam help catch the diamond thief? Cam and her friend Eric are sitting at the mall when the jewelry store is robbed. Cam sees the thief, but the police arrest the wrong person. Now it's up to Cam to catch the real criminal!

Meet the Secret Explorers! This group of brilliant kids comes together from all four corners of the globe to fix problems, solve mysteries, and gather knowledge all over the planet - and beyond. In The Lost Whales, marine life expert Connor needs to use his underwater expertise to help save a pod of humpback whales that has lost its way. Along with space expert Roshni, he sets out in a submarine to search for a way to steer the whales back on track.

Matilda is a sweet, exceptional young girl, but her parents think she's just a nuisance. She expects school to be different but there she has to face Miss Trunchbull, a menacing, kid-hating headmistress. When Matilda is attacked by the Trunchbull she suddenly discovers she has a remarkable power with which to fight back. It'll take a superhuman genius to give Miss Trunchbull what she deserves and Matilda may be just the one to do it!

Lucas and Clara search for Queen Tasha's missing emerald. On their exciting adventure, they travel to all the main attractions of Wrenly: Primlox (the island of fairies), Burth (the island of trolls), Crestwood (the island of dragons), Hobsgrove (the island of wizards), and the beautiful Mermaid's Cove. King Caleb has promised to reward the person who finds the precious stone, and Lucas and Clara are determined to search the entire kingdom until they find it!

When robot Roz opens her eyes for the first time, she discovers that she is alone on a remote, wild island. Why is she there? Where did she come from? And, most important, how will she survive in her harsh surroundings? Roz's only hope is to learn from the island's hostile animal inhabitants. When she tries to care for an orphaned gosling, the other animals finally decide to help, and the island starts to feel like home. Until one day, the robot's mysterious past comes back to haunt her....

Ally has been smart enough to fool a lot of smart people. Every time she lands in a new school, she is able to hide her inability to read by creating clever yet disruptive distractions. She is afraid to ask for help; after all, how can you cure dumb? However, her newest teacher Mr. Daniels sees the bright, creative kid underneath the trouble maker. With his help, Ally learns not to be so hard on herself and that dyslexia is nothing to be ashamed of.

The first Magic Tree House® Super Edition - and Jack and Annie's most dangerous mission ever in the scariest time the world has ever known: World War II. With a longer story and additional facts, this is a thrilling adventure no listener will want to miss!

It’s been three long months since Chris’ little sister, Molly, disappeared from the riverbank. His parents are learning to accept the official verdict - death by drowning - and hope that 13-year-old Chris will soon do the same. Their family therapist believes that revisiting the tragic scene and reviewing the video of that fateful day will help. But something about that video is haunting Chris. Watching it for the first time since the fateful day he shot it he comes to an awful realization....

Help Dink, Josh, and Ruth Rose solve mysteries from A to Z! This collection includes Detective Camp, Mayflower Treasure Hunt, White House White-Out, and Sleepy Hollow Sleepover.

Lily, Rosie, and Tess are staying with their Aunt Lucy for the summer. Aunt Lucy is very pretty and has a wonderful old house. The three cousins live in the attic, where each has decorated her room with curtains, pictures, and toys. One day, the girls decide to start a cookie company. They will bake and deliver goodies to hungry customers. Soon they have baked dozens of cookies and have made some wonderful new friends, including a shy man who has a crush on Aunt Lucy!

Ada Lace - third-grade scientist and inventor extraordinaire - has discovered something awful: Her neighbor's beloved Yorkie has been dognapped! With the assistance of a quirky neighbor named Nina (who is convinced an alien took the doggie) and her ever-growing collection of gadgets, Ada sets out to find the wrongdoer. As their investigation becomes more and more mysterious, Ada and Nina grow closer, proving that opposites do in fact attract.