Nature Mysteries

Sawyer Matthews is a retired and presumed-dead assassin. Ripped from her life of shadows and secrets, she's decided to gamble it all and accept a new chapter in her life - one that may lead to a brighter future. With her first case over and budding relationships with some of her teammates, Sawyer finds herself feeling more secure. Sawyer's found a place on the team, and wants to keep it, no matter the struggles that come from it. It should have been a standard, mundane trip to New York, and the base of operations for the IMPO and the WMC.

Alec Milius is young, smart, and ambitious. He also has a talent for deception. He is working in a dead-end job when a chance encounter leads him to MI6, the elite British Secret Intelligence Service, handing him an opportunity to play center stage in a dangerous game of espionage.

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.

Arthur's friend Buster is searching for a crime to solve. So when the quarters Arthur has collected for Mrs. MacGrady's charity drive mysteriously disappear, Buster is committed to cracking the case. Will Buster be able to prove Arthur's innocence so that he can attend the class picnic?

There's something spooky going on at the ranch! When Halloween arrives, Hank - the self-appointed Head of Ranch Security - has got his hands full of adventure. First there's a problem with the Tricker Trees. Then the ranch is invaded by two skeletons, a witch, and a pirate. And when Hank goes to investigate a strange sound in the cake house, he's sure it can only be one thing...a ghost. Can Hank rid the ranch of this unwanted visitor? Or is he destined to be spooked for good?

Humphrey has always investigated things, like why Speak-Up-Sayeh was so quiet and Tall-Paul and Small-Paul didn't get along, but this is a true mystery - Mrs. Brisbane is missing! She just didn't show up in Room 26 one morning and no one told Humphrey why. The class has a substitute teacher, called Mr. E., but he's no Mrs. Brisbane.

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!

These are the adventures and discoveries of the scientists who revealed the secrets of the Komodo dragon. This strange creature inspired myth and legend, luring brave souls into the forests of Indonesia to see if the tales were true. In the end, it attracted scientists, who unraveled the mysteries of how such a remarkable creature could exist, how it uses the deadly germs in its saliva to its advantage, and how those microbes may lead to cures for stubborn diseases.

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?

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.

Walter's family is holding a yard sale, but there are few customers. Walter, farting contentedly near Father, wonders why. When a man offers ten dollars for Walter, Father readily agrees. Walter wonders why. Walter is sad to leave his family behind but relieved to discover that his new owner is a clown. Walter figures he will help the clown bring joy to children on their birthdays. But the clown has a dastardly plot: He will use Walter's gas to inflate balloons and then pop them to stun guards during bank robberies. Will Walter turn to the dark side? Of course not! He comes out a hero and is reunited with his family by doing what he does best.

The Aldens must find a way to solve many mysteries, and all before 5:00 p.m. on Tuesday! Strange things are happening in Greenfield where the Boxcar Children live. Stray cats and dogs appear on doorsteps, but the animal shelter is forced to close, and a nice old woman disappears. Henry, Jessie, Violet, and Benny are very worried about Mrs. Newcombe. Is she in danger? Who are the strange men lurking around her house?

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?

In Maximum Ride: Saving the World and Other Extreme Sports, the time has arrived for Max and her winged "Flock" to face their ultimate enemy and discover their original purpose: to defeat the takeover of "Re-evolution", a sinister experiment to re-engineer a select population into a scientifically superior master race...and to terminate the rest. Max, Fang, Iggy, Nudge, Gasman, and Angel have always worked together to defeat the forces working against them—but can they save the world when they are torn apart, living in hiding and captivity, halfway across the globe from one another?

Follow along as a young detective searches for his baby brother's lost toy ducky. Questioning the eyewitnesses and searching for clues are all in a day’s work for this aspiring detective. But who could the culprit be?

In the 1870s, grasshoppers known as Rocky Mountain locusts destroyed crops and farms across the Great Plains states, then were never seen again. Where did these bugs come from and where did they go? That's the great grasshopper mystery!

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!

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.

When Hank is attacked by a Headless Cowboy, he knows it's going to be a tough day defending the ranch! But when Slim discovers Sally May's watermelon patch has been raided by raccoons, things get serious. Slim, Drover, and Hank are entrusted with the job of a nighttime stakeout to catch the raccoons in the act. Will Hank save the day? Or will busted watermelons prove Hank is a bust as the Head of Ranch Security?

The four Aldens like visiting the large old museum owned by their grandfather's friend. But then Jessie sees a huge, scary shadow moving in the room where the dinosaur skeletons are on display. And bones from the enormous Tyrannosaurus rex disappear. They must find the missing bones and solve the mystery before an exhibit is scheduled to open - or there might not be a dinosaur exhibit at all!