Nature Mysteries

Adventure-loving penguin Jackson dreams of being a secret agent like his Uncle Bryn, who works for the Frosty Bureau of Investigation. Jackson and his gadget-inventing best friend, Quigley, might officially be too young to join the FBI, but they aren’t going to let that stop them! They just need to come up with the right plan to prove they are worthy. But when one of Q’s inventions goes dangerously wrong, Jackson suddenly finds himself dropped right in the middle of an FBI stakeout. There’s fishy business afoot at the city’s aquarium....

Marine biologist Doc Ford invites Maribel, Luke, and Sabina to a remote island in the Bahamas where lionfish, a beautiful and venomous inhabitant of the South Pacific that has invaded Florida and the Caribbean, are not just upsetting the balance of nature by damaging the coral reefs - their sting has put several people in the hospital. What Doc and Captain Hannah Smith don’t mention is that the island is riddled with limestone caves, once home to a band of pirates, and stories of Spanish gold have lured outlaw treasure hunters to the area.

Help solve the mystery with the detective dog, set sail on an exciting adventure in the flying bath and cook up a feast for a very fussy king! This collection includes stories from four of Julia's illustrator partnerships: David Roberts, Sara Ogilvie, Catherine Rayner and Rebecca Cobb.

Lost in a dark, spooky forest! So I sought shelter in a crumbling old mansion. But I quickly discovered that it was haunted - by cats!

Blue River Creek has a problem: there's a pet thief on the loose! Or at least, Sofia and Iggy are convinced that there is, once their pets go missing. But as a scientist, Ada knows it's important not to jump to conclusions and to follow the facts. How will they find out what really happened to the town's pets? By using the Scientific Method, of course! Through making a hypothesis, collecting data, and experimentation, the Questioneers must find the missing animals before even more pets disappear!

Except Brodie can't move on. Not just yet. As wonderful as his glimpse of the afterlife is, he can't forget the boy he left behind. The boy he loved, and who loved him in return. The boy who's still in danger. So Brodie breaks the rules of heaven. He returns to Earth as a spirit. With the help of two other lost souls - lovable pitbull Tuck and surly housecat Patsy - he is determined to find his boy and to save him. Even if it costs him paradise. Even if he loses his eternal soul. Because it's what a good dog would do.

When there's a bank robbery in the country village where Djuna lives, and one of his dog's best friends gets shot in the escape, the boy makes up his mind he'll find out who did it. His chum and his dog, Champ, are in on the hunt, and two heads and a keen nose are better than one. The boys remember something queer they noticed about a truck with a covered load that passed them on the road when they were going fishing.

Kristen Stevenson is excited to host the first ever Midsommar Garden Festival at the Nature Station. Even though preparations are made, the weather is warm and sunny, and crowds are flocking to the festival, the festival committee chairperson is raining on their parade. When she later turns up dead, Kristen and her friends not only work to continue with festival duties but also start looking into the committee chairperson’s death. Was a disgruntled committee member to blame, or is the culprit closer to home? As Kristen asks questions around Eklund and digs up clues, she races to figure ...

Katie’s new puppy, Koko, has run away, and now the white doggie is lost! Pedro and Katie pair up to investigate. They are hot on Koko’s trail, but some clues lead nowhere. Still the detectives won’t give up.

Thar she blows! Dink, Josh, and Ruth Rose are on an Alaskan whale watching adventure. On their first day, they see a mother orca and her calf. But the next day, the baby orca is missing! The calf needs its mother’s milk. Can the kids solve this whale of a mystery?

It's the weekend—a perfect day for a sail off the coast of Maine. But there's something fishy going on with the local dolphins and Abbi, Lydia, and Daniel are determined to find out why. Are the dolphins twisting, leaping, and whistling because they're playing? Or is it a warning of nearby danger? And if it's danger, how can the kids get grownups to believe them? Abbi and her friends are diving head first into this mystery!

Beware of avalanches! When the magic tree house whisks Jack and Annie back in time to the highest pass in the Swiss Alps, they discover an ancient monastery filled with monks and Saint Bernard dogs. Annie can’t resist offering to train a wild young dog named Barry, but he is quite the handful! Before the night is over, Jack and Annie will be forced to use some crazy magic!

Marlborough House is the home of Edward, the Prince of Wales (second child and eldest son of Queen Victoria). He lives there with various children and family members. Unbeknownst to the human royals, there is a corresponding clan of noblemice living there as well. At the moment, the human royal family is hosting the visiting royal family of Bohemia, along with that family’s corresponding group of stowaway noblemice. However, the teen noblemice of both houses have vanished without a trace, and everyone fears that one of the royal dogs may be responsible. Can Basil help?

In this hilarious chapter book mystery, meet a girl whose parents have been kidnapped by disreputable foxes, and a pair of detectives that also happen to be bunnies! When Madeline gets home from school one afternoon to discover that her parents have gone missing, she sets off to find them. So begins a once-in-a-lifetime adventure involving a cast of quirky and unforgettable characters.

A new Pete the Cat mystery in paperback for the first time! Alex and his friends witness a pig falling from a speeding red truck. Working with the police and an animal rescue group, the kids get permission to keep the pig. But after a local TV station runs a story about the rescue, the angry truck driver shows up at Alex's house, determined to take the pig to slaughter. Who is this man? What is he hiding? Pete uses his skills to solve the mystery but, as usual, his humans don't understand. When the dangerous situation turns deadly, can Pete save himself?

When Queenie the cat wins first place in a feline beauty contest at the county fair, Arthur the dog expects her to be snootier than ever. (Even though she barely beat out another cat who looked almost exactly like her.) Yet when Queenie returns from the fair, she seems oddly nice and sociable - almost like she's had a personality change! The humans chalk up Queenie's good mood to her recent win, but Arthur knows the truth. He can tell from the smell that this friendly Queenie is an imposter!

A shipment of dinosaur bones meant for a new exhibit has been stolen from the Capitol City Natural History Museum! But even worse, the group of paleontologists working on the shipment has disappeared, too - and among them is Wilson Kipper’s mother. Wilson and his friends are determined to get to the bottom of the mystery, but can they do it in time to save his missing mom?

Countless reports from credible individuals suggest that something shocking may be stalking the woods of the southern United States—something massive, bipedal, and covered in hair. Tales of these Southern Sasquatch creatures—such as the one made famous by the 1972 horror movie The Legend of Boggy Creek—date back to the very origins of Deep South history and are reported even today.

When Kristen Stevenson and her husband, Brett, travel to Northern Minnesota for Brett’s family reunion they are excited to spend a fun-filled weekend exploring Lake Superior’s gorgeous North Shore in between family gatherings. But plans go awry when the black sheep of the family crashes the reunion, only to turn up dead the next day. Kristen wonders if his death was accidental or if it was a result of foul play. Either way, something smells fishy in the greatest of lakes. Escape to the Northwoods and experience breathtaking views as Kristen and Brett work to solve the mystery while they...

At Ridgewood Wildlife Sanctuary, even the slow winter season can take a surprising turn. Fraternal twins Ginny and Gino have spent their whole lives surrounded by wild animals, helping their parents care for everything from rescued deer to injured birds. But when a string of strange events starts disrupting the quiet routine at the sanctuary, the twins know something isn’t right. Teaming up with their best friends, Caroline and Victor, they begin to track down the cause — all while managing family life, friendships, and the daily demands of caring for wild animals. Blending humor, light...