Cycler Series by Lauren McLaughlin

AS FAR AS anyone at her high school knows, Jill McTeague is an average smart girl trying to get her dream date to ask her to the prom. What no one knows, except for Jill's mom and dad, is that for the four days Jill is out of school each month, she is not Jill at all. She is Jack, a genuine boy--complete with all the parts. Jack lives his four days per month in the solitude of Jill's room. But his personality has been building since the cycling began... moreAS FAR AS anyone at her high school knows, Jill McTeague is an average smart girl trying to get her dream date to ask her to the prom. What no one knows, except for Jill's mom and dad, is that for the four days Jill is out of school each month, she is not Jill at all. She is Jack, a genuine boy--complete with all the parts. Jack lives his four days per month in the solitude of Jill's room. But his personality has been building since the cycling began. He is less and less content with his confinement and his cycles are becoming more frequent. Now Jill's question about the prom isn't who she'll go with, but who she'll be when the big night arrives. less

How do you grow up, if who you are keeps changing? Jill McTeague is not your average high school graduate, she’s a scientific anomaly. Every month for four days she turns into Jack, a guy—complete with all the parts. Now everyone in her hometown knows that something very weird is up with her. So what’s a girl (and a guy) to do? Get the heck out of town, that’s what! With her kooky best friend, Ramie, Jill sets out for New York City... moreHow do you grow up, if who you are keeps changing? Jill McTeague is not your average high school graduate, she’s a scientific anomaly. Every month for four days she turns into Jack, a guy—complete with all the parts. Now everyone in her hometown knows that something very weird is up with her. So what’s a girl (and a guy) to do? Get the heck out of town, that’s what! With her kooky best friend, Ramie, Jill sets out for New York City. There both she and Jack will have to figure out everything from the usual (relationships) to the not so usual (career options for a “cycler,” anyone?). less