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.

Twelve-year-old Mitch and his mother are spending the summer with his grandparents at Bird Lake after his parents separate, and ten-year-old Spencer and his family have returned to the lake where Spencer's little brother drowned long ago, and as the boys become friends and spend time together, each of them begins to heal.

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.

Portia and her cousin Julian discover summer adventure in a hidden colony of forgotten summer houses on the shores of a swampy lake.

Kit Spencer may be the youngest wizard ever, but she sure doesn't feel like the best wizard. Her magic keeps going wrong, and other weird stuff is happening: talking animals, exploding fireballs, and a very strange new arrival in the local park. Kit and her two best friends, Alita and Josh, set off with Faith the librarian to investigate the wild magic that's causing so much commotion. Their journey takes them to Scotland, where they meet a loch-full...

Claire and Abi have always loved summers at the lake house, but a pregnant stepmother and Abi's intense new interest in boys have changed everything.

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...

It is summer and as a special treat after the horrors of last term Mrs Knight announces a school trip to Shady Pines Hotel on the shores of Lake Seren. Scarlet and Ivy are thrilled to get away from Rookwood for a break! But the old hotel and the waters of the lake reservoir are covering up dark secrets. And when mysterious things start happening to hotel guests it seems that a malicious new threat is haunting the girls. Locals say that at night you...

"It's summer in the hidden valley and the inhabitants are getting ready to celebrate 'Dragon's Day'. But when things start to go amiss, can the friends set things right and evade the monster that lurks beneath the lake before the party begins?"--Back cover.

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...