Life is not easy, and one of the most difficult parts is growing up. Alex perfectly knows that: he is a 14-year-old and what he sees in the mirror every morning is just a lonely clumsy child with pimples all over his face.
Freshman year is about to end, when the new chemistry teacher appears at school: Nicky looks young and charming, sometimes a little bit tough and elusive. Alex senses there is something more to her, and the day he ends up in detention with Gio, his former best friend; Matilda, the most beautiful and snobbish girl at school; and Claudia, very smart and also very cynical, he hits upon Nicky’s secret: she is an immortal alchemist from the 14th century.
She is trying to catch one of the last missing pieces she needs to have complete power over the transformation of things, including herself: she wants to become mortal again. While an old enemy is on her tracks, Alex and the others side with Nicky, helping her on her quest and, at the same time, learning how hard life can be.