Margaret Luce

A group of curious kids from Camp Loggerhead embark on an adventure to solve the mystery of the missing sea turtle eggs. Led by two determined 13-year-olds, the clever campers must overcome dangerous obstacles, gather evidence, earn the trust of their parents, and ultimately catch the clueless poachers.

A guy without many everyday worries finds a door floating in the ocean and soon suspects he is being followed. He discovers that it is himself that is following him and that the door allows him to travel back in time. He sets about trying to improve his life by changing his past; leaving himself notes all while trying to track down and correct the corrections his future self keeps trying to make.