Nature Mysteries

When a remote camera on a large, rugged expanse held by the Land Trust for Wildlife Conservation picks up a blurry image of what could be a mountain caribou, they contact Alex Carter to investigate. After all, mountain caribou went extinct in the contiguous U.S. years ago, and if one has wandered down from Canada, it’s monumental.

Emily the Strange: 13 years old. Able to leap tall buildings, probably, if she felt like it. More likely to be napping with her four black cats; or cobbling together a particle accelerator out of lint, lentils, and safety pins; or rocking out on drums/ guitar/ saxophone/ zither; or painting a swirling feral sewer mural; or forcing someone to say "swirling feral sewer mural" 13 times fast.... and pointing and laughing.

Rex Dexter is cursed...with brains...and daring...and more than his fair share of devilish good looks. But also with an actual curse: dead animals keep showing up in his bedroom, wanting him to solve their murders. After successfully sleuthing a series of endangered animal assassinations, Rex is pretty sure he's home free, spiritually speaking. But that's when he finds a 2,000-pound narwhal in his beanbag chair. And this tough guy is dead. And super crabby about it.

In The Golden Toad, Trevor and Kyle set off to investigate an environmental mystery with unexpected revelations, a story that speaks to our own collective and uncertain future. Guided by Costa Rican naturalists—including the last person to have seen the golden toad alive—Trevor searches for survivors while Kyle hunts the killer, and their paths lead them through an imperiled forest, a deadly pandemic, and a changing climate, intertwining at the site of the golden toad's last emergence deep in Monteverde's Bosque Eterno de Los Niños.

Meet Atticus Grammatticus Cattypus Claw, the world’s greatest cat burglar. He’s a tabby who spells trouble. And he’s been hired by the fiendish Jimmy Magpie to steal all the jewels in Littleton-on-Sea. Atticus needs a temporary home – preferably one with lots of sardines provided. But when he adopts Inspector Cheddar and his family, Atticus starts to wonder, is a life of crime really for him?

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.

Small town 17-year-old Vivienne Taylor is a talented equestrian with Olympic dreams and a little something extra going on - she is also an "equine empath", someone who has the ability to read horses’ minds and moods. When she receives a full scholarship to attend Fairmont Riding Academy, a prep school with a famous riding program, she struggles with homesickness, hazing by the school’s snooty drama queen, intense competition in the sport of three-day-eventing, and the not-altogether-unwelcome interest of a hot guy. On top of all of that the horse given to Vivienne via the scholarship is an animal that she cannot "read" or understand.

This second book, The Sands of Time, continues the adventures of Hermux Tantamoq, mouse and watchmaker in the imaginary city of Pinchester. When the museum announces a show of Mirrin Stentrill's latest paintings (monumental, visionary portraits of cats) Mayor Hooter Pinkwiggin vows to shut it down. Cats are touchy subject among Pinchester's mostly small-rodent population. But while militant mice organize to stop the show, most of Pinchester's stylish set is vying for invitations to the gala opening.

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.

A local schoolteacher is missing, and the only thing fishier than the circumstances surrounding his disappearance is the smell coming from the bag he left behind. All clues point to billionaire businessman Frank Pandini Jr. - but why would Pandini get his paws into the illegal fish trade?

The world’s shark population is in trouble for a sad, simple reason: shark fin soup. And although it’s illegal, poachers have been targeting Florida’s biannual migration of blacktip sharks. Marine biologist Doc Ford needs some assistance protecting the sharks and enlists the help of three kids - Luke, Maribel, and Sabina. Luke is brand-new to Florida from the Midwest; sisters Maribel and Sabina have only recently arrived from Cuba - and all three feel like fish out of water. It’s going to take some convincing for them to work as a team.

An American classic with a refrain that millions of kids love to chant: Hundreds of cats, thousands of cats, millions and billions and trillions of cats. Wanda Gág's enchanting tale of the very old man who went off in search of the prettiest cat in the world for his wife and returned instead with millions to choose from has become an American classic, widely recognized as the first modern picture book. First published in 1928, it was a recipient of the 1929 Newbery Honor Award and has gone on to sell over a million copies.

Bowser the dog is doing great. He's been adopted by Birdie, the greatest girl in the world, and he gets lots of love, lots of walks, and sometimes even bacon! But why is Birdie looking so worried? Who broke into their house? Why is the new girl in town digging into the old mystery of what really happened to Birdie's dad, a policeman killed in the line of duty? Bowser better keep his ears perked and his paws at the ready. A murder case that went cold long ago is fixing to get way too hot.

Of all the creatures of the deep blue, none is as captivating as the octopus. In Many Things Under a Rock, marine biologist David Scheel investigates four major mysteries about these elusive beings. How can we study an animal with perfect camouflage and secretive habitats? How does a soft and boneless creature defeat sharks and eels, while thriving as a predator of the most heavily armored animals in the sea? How do octopus bodies work? And how does a solitary animal form friendships, entice mates, and outwit rivals?

The Boxcar Children are spending their vacation on a farm. They learn to do everything from milking cows and making homemade jam to raising a barn. Then one day they spot a beautiful horse locked up in a stable. Who is the mystery horse? And why is it hidden?

Baker Street mice - beware! So far the twins are safe. They'll stay that way if you do what we say. We've decided to make your Baker Street cellar the headquarters for our gang. Everybody must be out in 48 hours. It's Basil's job to move you all out, just the way he moved you in. Better make it fast! And leave the furniture - we need it. This is the only warning you'll get. And listen - if you don't follow our orders, you'll never set eyes on those twins again!

One day in the park, the Aldens’ dog, Watch, comes across a mysterious box with a note inside. “Congratulations!” the note says. “You’ve found it!” The box is part of a game called Geocaching. Soon, Henry, Jessie, Violet, and Benny are searching all over town for hidden boxes and making friends with other kids in the geocaching club. But is one of the club members a thief?

Watchmaker Hermux Tantamoq is a hardworking mouse who is thankful for ordinary things: donuts, coffee, peaceful evenings at home with his pet ladybug. But his quiet life takes a dramatic turn when Ms. Linka Perflinger, dashing daredevil aviatrix and adventuress, bursts into his watch shop, drops off a broken watch and steals his heart.

The Chameleon Wore Chartreuse: Chet Gecko loves a good mystery. Almost more than he loves his fee - stinkbug pie. So when fellow fourth grader Shirley Chameleon asks him to find her missing brother, Billy, Chet expects the case to be as easy as pie. But Billy's disappearance is part of a larger plot. The Mystery of Mr. Nice: Most folks know him as the best lizard detective at Emerson Hicky Elementary, but it's not all knuckles and know-how with Chet Gecko. He's also got his artistic side. If it wasn't for his art, he might never have been sent to Principal Zero's office, where he stumbled onto the mystery of Mr. Nice.

Didi Dodo, the heroic spy, and Koko Dodo, the cookie chef, are off to solve another kooky caper! In Double-O Dodo, Koko has a big problem: His trusty assistant, the Queen, has been kidnapped! Over a frantic phone call, she tells Koko that she’s been kidnapped by a human, which is preposterous - everyone knows that humans aren’t real! Luckily, Didi is on the case. Her plan: To go undercover at the Humanland amusement park to find the Queen.