Nature Mysteries

When Sally May and Loper head out of town for a wedding, Hank the Cowdog, Head of Ranch Security, knows it's up to him to keep things under control. After subjecting strawberry ice cream to rigorous product testing, test-driving a mysterious spaceship, and thwarting a sneak attack from a couch monster, Hank faces the fight of his life.

Butterbean is bored. She and the other pets pulled off a heist once, but that was like a million years ago. Nothing exciting has happened since then. That is, until Mrs. Third Floor shows up at their apartment, convinced there's a ghost in the building. Mrs. Third Floor's rental unit is showing signs of paranormal activity—eerie noises, objects moving when no one is there, fish disappearing from the tank overnight. The pets decide to investigate. Soon they're confronted with a bigger problem than just ghosts: professional ghost hunters who are offering to drive out the spirits for a hefty fee.

Chipper is a very special dog. He's part of a multi-million dollar experiment at a secret organization known only as The Institute. The Institute has been experimenting with dogs, melding them with state-of-the-art computer technology. But there's a problem with Chipper. His natural dog instincts often overrule his computer side. No matter what he's doing, if he sees a squirrel or a mouse, he'll drop everything to chase it.

Sometimes a busy businessmouse like me needs a nice, relaxing vacation. But every time I tried to get away, disaster struck! By the time I finally tore myself away from The Rodent's Gazette, all the good trips were booked up. I found myself stuck in a flea-ridden old hotel, sharing a room with a bunch of Gerbil Scouts!

Leila and Nugget have big plans for their snow day—that is, until a neighborhood pet goes missing. Now, they’ve got to solve the mystery before the turtlenapper can strike again. Could it be Weirdy Beardy, the construction worker? Perhaps it’s the cranky, old neighbor lady. Or maybe, just maybe, this is an inside job. Who Stole Mr. T? will keep young listeners guessing until the very end.

When Naomi gets a tip about a strange snake sighting in the neighborhood, she knows it’s a job for her snake-saving club. Naomi, Nolan, and Emma go to investigate and get a huge surprise. The snake isn’t a native Texas species—it’s a ball python! Did someone dump an unwanted pet, or did this snake somehow get lost?

Kayla's cat, Daisy, is missing. Kayla is so worried. She calls her friends, and soon enough the entire Pet Club is on the case.

When Mia moves to Vermont the summer after seventh grade, she's recovering from the broken arm she got falling off a balance beam. And packed away in the moving boxes under her clothes and gymnastics trophies is a secret she'd rather forget. Mia's change in scenery brings day camp, new friends, and time with her beloved grandmother. But Gram is convinced someone is trying to destroy her cricket farm. Is it sabotage or is Gram's thinking impaired from the stroke she suffered months ago?

Abi and her two step-brothers, Max and Louis, find that strange things happen when they are alone in their eerie, ivy-covered new house. Abi, reading alone, finds herself tumbling deep into books, while Louis summons a startling guest through his bedroom window. Even Max has started to see shapes in the shadows....Their busy parents see none of it - but Louis' secret visitor is growing too alarming to keep secret, and he finds he cannot manage without Max and Abi's help. Can they find out where the mysterious creature has come from - and how to get it back there?

Detectives Sal and Iggy have a new case—find the stolen diamond from the museum! Together, they must find the thief and return the diamond. Who can be the buggy culprit? Was it the security guard firefly? One of the bees at the nearby party? These two reptiles need to use the evidence left at the scene to solve the mystery!

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!

It is five days until Christmas, and Winston has a Very Curious Mystery to solve. He has hazy rememberings of another mouse, and he just knows that someone very important to him is lost. After promising Oliver that he will be back in time for Christmas, no matter what, Winston sets out on an exciting round-the-world adventure to find the missing mouse, helped along the way by wonderful old friends and delightful new ones, too.

Marie Russell and Detective Roméo Leduc are finally getting married, but the joyous occasion is overshadowed by the unexpected arrival of Magnus Sørenson, renowned eco-warrior and Marie’s first great love. When Magnus’ plans for a dramatic environmental protest take a dark turn, Roméo and Marie are forced to abandon their honeymoon in the Laurentians in order to catch a killer, unearthing long-buried secrets along the way.

The ranch is in the grip of a sweltering summer heat wave, and to make matters worse, Bruiser the Rottweiler is on the loose. First Bruiser attacks a defenseless fawn, then he threatens to come after Hank the Cowdog, the Head of Ranch Security!

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.

Hank learns about a tool thief on the loose who uses a monkey to help him do his dirty work. And before long, Hank finds himself face-to-face with the pilfering primate! Can Hank help to stop the criminals in their tracks, or will the crooks make a monkey out of the Head of Ranch Security?

The Virals are put to the ultimate test when they find a geocache containing an ornate puzzle box. Shelton decodes the cipher inside, only to find more tantalizing clues left by "The Gamemaster". A second, greater geocache is within reach - if the Virals are up to the challenge. But the hunt takes a dark turn when Tory locates the other box - a fake bomb, along with a sinister proposal from The Gamemaster. Now, the real game has begun: another bomb is out there - a real one - and the clock is ticking.

When Kayla discovers that something is eating Daisy's cat food, she immediately calls the Pet Club to action. They grab their pets and start to gather clues. Will they solve the case of the cat food thief?

In this compelling narrative, O'Connor seeks out neuroscientists, anthropologists and master navigators to understand how navigation ultimately gave us our humanity. Biologists have been trying to solve the mystery of how organisms have the ability to migrate and orient with such precision - especially since our own adventurous ancestors spread across the world without maps or instruments. O'Connor goes to the Arctic, the Australian bush and the South Pacific to talk to masters of their environment who seek to preserve their traditions at a time when anyone can use a GPS to navigate.

It's roundup time, and Hank the Cowdog is ready to strut his stuff. So what's Benny - a world-class cattle dog with the papers to prove it - doing at the ranch? As Head of Ranch Security, Hank knows it's his job to find out. But what Hank learns isn't easy to swallow. Benny has been brought in to take his place in the roundup!