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

On the day Cassie was born, the mayor flipped a lever and everyone cheered as Old Lower Grange was submerged beneath five thousand swimming pools' worth of water and now, twelve years later, Cassie is drawn to the mysterious manmade lake and is joined by her scarred classmate, Liam, in forbidden daily swims while uncovering her town's dark secrets

Various disasters threaten to stop Poppa and the children from getting to the lake in their rattletrap car, but they manage to come up with an ingenious solution to each problem

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

When Lucy the beagle goes to a lake with Bobby and his family, she does not want to go in the water and, instead, has an adventure on her own.

It's a summer day so beautiful and peaceful that Hattie, paddling in her canoe in the middle of a lake, can't help but sing. In the deep water below, a creature is lurking. He's huge and green, with a long, long neck and he rarely leaves his lair. But on this day, he hears something sweet and inviting. He hears a song. What happens when the creature rises to the surface is nothing short of magical. Can a young girl and an enormous lake monster become...