Gr 4--7--In this newest iteration of the "Emily Windsnap" saga, the titular character is experiencing friendship problems. Just when she thinks she has fixed the problems in her life, the wishing stone leads her to a mysterious rift in the ocean floor and she is transported through time to see what effect her decisions have on her future self. Each time Emily travels through the tides of time, something always goes wrong to cause her future to be less than ideal. Emily must find the correct formula to ensure the best possible future for both herself and her friends and family. This book introduces the importance of recycling and keeping our oceans clean. While the book uses the classic premise of a Groundhog Day-esque theme, readers are able to directly see the results of Emily's actions. VERDICT Purchase where the "Emily Windsnap" series has been popular and for collections that need more hi-lo choices for tweens.--Sara Brunkhorst, Glenview Public Library, IL