Nature Mysteries

Bowser is a dog detective on the loose, paired with an 11-year-old girl, Birdie. Bowser and Birdie live on the Louisiana coast with Birdie's Grammy. When a prize stuffed marlin is stolen from Grammy's bait and tackle shop, Birdie and Bowser decide to take on the case. But what looks like a straightforward break-in soon becomes as tangled as a tourist's fishing line.

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.

Walter the Cat is a star, but is he too famous for his own good? The Boxcar Children must find out who's trying to ruin this cat's career!

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....

In this celebration of the seemingly mundane, Carlsen opens our eyes to the engineering marvels, human stories, and natural wonders right outside our front door. He guides us through the surprising allure of sewers, the intricacies of power plants, the extraordinary path of an everyday letter, and the genius of recycling centers — all the while revealing that this awesome world isn’t just a spectator sport. Engaging as it is endearing, A Walk Around the Block will change the way you see things in your everyday life.

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.

Crime is on the rise in Dogtown, and it’s all thanks to a mysterious art forger! They’ve stolen one of Puplo Picasso’s masterpieces out of a museum and swapped it with a fake. Such a big case would normally go to the Top Dog detectives, but they’re out of town on vacation. So it’s time to call in the Underdog Detective Agency: with Barkley the German shepherd, Carl the Chihuahua, Dr. Spots the Dalmatian, and Fang...the cat. (Yes, a cat!) What the Underdogs lack in skill, they make up for in grit and determination.

Kayla needs to return her library books so she can check out new ones. But she can’t find one of them. Where could it be? Can King and Kayla’s friend Jillian help?

Welcome to the bone chilling, pulse-pounding world of PIGGY, the survival-horror game that will keep you up at night. With the Infected hot on their heels and growing in number, a small band of survivors must come together and try to stop their island from being overrun. But is there really a cure for whatever is turning people into mindless monsters? Or are they too late to save anyone at all?

There is a mystery to be solved, keys to be found, and an evil pig to escape! When an infection threatens to turn everyone into mindless, dangerous monsters, it is up to a few desperate survivors to get survive long enough to find a cure. But can they hold on long enough to get to the bottom of this mysterious illness, or will PIGGY and her new minions find them first?

King, Kayla, Mason, and Asia are playing in the snow. Later, Asia discovers her new gold ring is missing. What happened to it? What does Kayla know? 1. Asia’s ring is missing. 2. It was on her finger when she came over. 3. It’s not in the cushions, on the table, in the drain, or outside. What does King know? There’s a crow outside. Crows like shiny things. How will they solve the mystery?

The Wundermutt dog food company is searching for a very special dog to be in their commercials, and the Aldens bring their dog, Watch, to the tryouts! But plenty of other dog owners are hoping their dogs get the job too - including a dog that's already famous. Does Watch have what it takes to be a star?

Young dairymaid Begonia has lost her cow Alfalfa. So she has set off on a search across the countryside even though she has nothing but a magical map to guide her. Along the way she meets a mother and baby, a woodcutter, a very dirty young man, and an eight-foot ostrich. Meanwhile, the emperor has gone missing from the royal palace in a most mysterious manner. Was it murder? Was it magic? It will take all of Begonia's wits to save the empire and get Alfalfa home safely.

After James gets a pen-and-ink set for his birthday, Marvin the beetle surprises him by creating an elaborate miniature drawing. James gets all the credit for the picture and before these unlikely friends know it they are caught up in a staged art heist at the Metropolitan Museum of Art that could help recover a famous drawing by Albrecht Dürer. But James can't go through with the plan without Marvin's help. And that's where things get really complicated (and interesting!)

Inca the Siberian kitty and her furry detective team are entangled with international spies and the shadowy Ninja Spy Cat in this amusing animal mystery.

Emily is a mad scientist, a cat lover, a mural painter, a golem builder, a virtuo-spastic guitarist, a wicked skater, a wily troublemaker, a poltergeist tamer, a mystery solver, a master prankster, an extreme procrastinator, a happy loner, and a unique individual. And now there are two of her.

Legal investigator Finley O’Sullivan has had a difficult year in the wake of her husband’s murder. But in her line of work, there’s no time to grieve. Her job is to protect the firm’s clients and defend their innocence through grueling investigative work. Ellen Winthrop is a force to be reckoned with in the financial world. In a male-dominated industry, she shattered the glass ceiling by empowering and promoting women. But now her husband is dead, killed in the Winthrop family home—and she stands accused of his murder.

Kat and Harper can’t wait to join their parents on a winter vacation in a mountain cabin in the US. But a series of misadventures result in them being in the wrong place at the wrong time. Alone. When Kat discovers that an argument she witnessed in New York City holds the key to a major crime, she’s certain that it’s only a matter of time until the culprits come looking for her. With a snow storm moving in and no way out, all that stands between the girls and disaster are a team of eight huskies and one impossible raccoon.

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.

Crime is on the rise in Dogtown, and it’s all thanks to a doggone thief! It’s nearly time for the Dogtown Tennis Grand Slam, but all the balls have gone missing. Could Boris Barker, the famed international tennis pro, be behind it all? Or what about Steffi Gruff? Or Novak Dogavic? No matter who the culprit is, if they’re not stopped, the tournament will be ruined. So it’s time to call in the Underdog Detective Agency: with Barkley the German shepherd, Carl the Chihuahua, Dr. Spots the Dalmatian, and Fang . . . the cat. (Yes, a CAT!)