In the present day, Michael and his girl friend Pepper meet Lizzy Palmer, a strange new girl who always seems to be lost. Michael is oddly attracted to her. When Michael and a group of friends borrow snow mobiles from his father snowmobile showroom, Michael hits a boy when he is unable to move. The friends panic and leave the scene, especially when Lizzy claims it is a boy from her school, Angel, who is a psychopath. Michael goes back, and the boy is gone. Unsure of whether or not he actually killed the boy, Michael is plagued by visions. He sees Angel rising from a grave on a history class trip to a cemetery, and gets threatening phone calls, presumably from Angel. One by one, the teens who were snowmobiling are injured, or in one case, killed. Michael and Pepper go to the police and tell them the whole story, but the police can't really do anything because Lizzy doesn't seem to exist. How has she come to Fear Street, and why is she targeting Michael? The answer is as shocking as it is surprising.
This book follows the two others in the Fear Street relaunch, Party Games and Don't Stay Up Late. Just like the original series, it's not crucial to read them in order. I can't remember another Stine book where there is time travel, but he certainly uses it to good effect in The Lost Girl.
For sensitive readers: There was a bit too much human-on-human violence for my taste, but it's not too over the top or gruesome even for middle school.