While doing roller skating tricks, Karen falls and breaks her wrist--now summer won't be much fun.

It's going to be a great weekend! Karen has new roller skates and is a very good skater. She's looking forward to trying some new tricks. But, oh no! Karen falls down and has to go to the hospital. Her wrist is broken! Karen is determined to get everyone she knows -- plus someone famous -- to sign her cast. It isn't going to be easy, but she won't give up until the job is done.

Shipwrecked with her family on a remote island, Sarah Robinson learns about the existence of a mysterious Keeper right before her father and younger brother go missing.

High-schooler Willa has just moved to California with her mother and film director stepfather, and she will be attending a private school--but her real problem is that she keeps seeing things that are not really there, like a dead body in the swimming pool, and her visions may be connected to a serial killer that is stalking young girls in Hollywood.

Ever since her father died in a terrible accident, Maddy Gaines has worried a lot. She calls the police so often that she's on a first-name basis with the Sheriff. When a new boy moves to town, Maddy is convinced that he's not who he says he is--he's a boy who went missing six months ago. Maddy, her dog, her best friend, and her stepdad team up to see what he's hiding.

The first time around, the kids had to figure out a way to work together and survive on a deserted island. This was hard for a blended family that had just been put together (Vanessa and Buzz's dad married Jane and Carter's mom) but they still managed to make it and get in touch with their parents. Or so they thought. Stranded on a new island, with dangers they've never before encountered, Carter, Vanessa, Buzz, and Jane find themselves in a desperate...