Publisher's Synopsis
Charles Wallace, fifteen, and the unicorn Gaudior embark on a perilous voyage through time in this companion volume to A Wrinkle in Time (Newbery Award winner) and A Wind in the Door in a desperate attempt to stop the evil dictator MadogBranzillo from destroying the planet. In their search, they are not alone. Meg Wallace, Charles Wallace's sister, is with him in spirit. She is grown and expecting her first child, yet she is still able to ""kything"" into her brother's thoughts and emotions. But, in order to overcome the obstacles, Charles Wallace must put his faith and will to the ultimate test, as he is sent within four people from another time to find a way to prevent the disaster that threatens them all.
