Everyone knows that twelve-year-old Madison Lewis is not allowed to bring home any more animals. After harbouring hairless mice, two birds, a rabbit, and a tomcat that ended up destroying the front porch, Madi is forbidden from inviting one more stray into the house. But when she and her best friends Aaron and Jack find two beaver kits whose parents were killed, they know the kits will die without their help. They know, too, that more beavers will...

Twelve-year-old Nicholas and his ten-year-old twin sisters, Hetty and Haley, spend the summer with their Great-Uncle Nick at Forsaken Lake, where he and their new friend Charlie investigate the truth about an accident involving their families many years before.

Since there wasn't enough proof to convict Alva's father for the murder of her mother, she's been forced to live in his house in Ormscaula, Scotland, being raised by the man she holds responsible for her motherlessness. His family has been called guardians of the loch for generations, and now it falls to her to monitor the water levels, despite not knowing what she's watching for -- or what may be watching her back.

A girl and her father encounter loons and other lake creatures during a magical nightime canoe ride.

Cooper thought living at a campground would be cool, but ever since his parents bought the lakeside campground, he's had more chores and less time to explore. Now his ex-friend Roy has chosen him as this summer's bullying target! Cooper's only bright spot this summer is his new friend, Packrat, a guy who carries the world in his coat pockets. When someone dams up the lake and floods the loon nest, it's up to the boys to figure out who, why, and how...

Carl and Madeleine are supposed to be napping while Mom and Dad get the summer cabin ready for company but escape from the hammock to do some exploring on the lake.

The boys are down in the dumps--literally! Someone is dumping trash on the Wilder Family Campground's property. It's bad for the campground, and bad for the wildlife there, too. When Cooper Wilder and his friends, Packrat and Roy, find a fox in the woods with its head stuck in a jar, they know it's time to investigate. But when the boys start digging, they stumble headlong into the path of a garbage truck, an abandoned cellar hole, and a black bear...

The reader makes a series of choices that determine how the story's main character will cope with her fear of swimming in lakes.

As a Young Scientist, twelve-year-old Addie studies pollution in the lake where her twin brother recently drowned, while secretly continuing his investigation of the creature he believed lives in the lake's depths.

A lost lynx kit, sled dogs, ice fishing, and a dangerous snowmobile are just part of a snowy mystery when Wilder Family Campground opens during winter vacation. Can Cooper, Packrat, Roy, Summer, and new friend Wynter join forces to save the day?--Back cover.